Best 20 Wild Mushroom Sauce Recipes

PASTA WITH WILD MUSHROOM SAUCE

Steps:

• In a large stock pot, bring salted water to a boil.
• In a large saute pan, over high heat, heat the olive oil. Add the onion and garlic and saute for 1 minute, just until beginning to turn translucent. Add the marjoram and saute 1 more minute. Add the mushrooms and saute until they begin to brown and release their liquid, about 5 minutes. Add the Mushroom Stock and reduce 5 minutes. Add the cream and reduce about 5 minutes, or until the sauce begins to thicken. Season, to taste, with salt and pepper.
• Cook pasta until al dente. Drain and quickly toss with mushroom sauce. Sprinkle with Parmesan cheese. Divide onto serving plates and serve immediately garnished with marjoram sprigs.
• Combine the chicken stock and mushrooms in a saucepan. Bring to a simmer and cook until reduced by half. Strain.

CHICKEN WITH WILD MUSHROOM AND BALSAMIC CREAM SAUCE

Steps:

• Heat a large pot of water to a boil. Salt the water and add orzo pasta. Cook to al dente.
• Preheat a large nonstick skillet over medium-high heat and add extra-virgin olive oil, 2 turns of the pan. Season chicken liberally with salt and pepper and add to the hot skillet. Cook the chicken for 5 to 6 minutes on each side. Remove the chicken from the pan and cover with foil to keep warm.
• Return the skillet to the heat, turn heat back a bit, and add the butter. Once the butter melts add the mushrooms and brown stirring occasionally for about 4 to 5 minutes. Once the mushrooms are brown season with salt and pepper then add the garlic, thyme and shallots. Cook stirring occasionally for about 2 minutes or until the shallots are wilted. Sprinkle the flour into the pan and cook 2 minutes more. Whisk in the stock, balsamic vinegar and the cream. Turn the heat up to high and simmer for about 2 minutes or until thickened. Slice the chicken on an angle. Add the parsley and the chicken back to the skillet to heat up, about 1 minute.
• To serve, pile orzo on dinner plates and top with the sliced chicken and sauce.

WILD MUSHROOM RAVIOLI WITH BUTTER AND PARMESAN SAUCE

Steps:

• Cook the ravioli in a large pot of boiling salted water until just cooked through, about 5 minutes. Drain and put on a platter.
• Meanwhile, cook the butter in a heavy medium frying pan over medium-high heat until pale golden, about 4 minutes. Add the basil leaves and cook until lightly fried, about 2 minutes. Add the pine nuts. Pour over the cooked ravioli. Grate 1/2 teaspoon of nutmeg directly over ravioli. Sprinkle Parmesan over dish and serve.

WILD MUSHROOM SAUCE

Steps:

• Melt butter in a saucepan over medium heat. Saute shallots briefly, then stir in all of the mushrooms. Saute until tender and translucent, about 3 minutes. Pour in red wine, and simmer for 3 minutes. Stir in demi glace, and simmer for 6 minutes, or until sauce has thickened.

RED WINE AND WILD MUSHROOM SAUCE

Steps:

• Place a clean skillet over medium heat. Add the butter and a 2-count drizzle of oil. When the butter starts to foam, add the shallots and saute for 2 minutes to soften. Add the mushrooms and thyme; season with salt and pepper. Stir everything together for a few minutes. Add the red wine, stirring to scrape up any stuck bits; then cook and stir to evaporate the alcohol. When the wine is almost all gone, add the reserved beef juices. Let the liquid cook down and then take it off the heat. Stir in the cream and chives, and season with salt and pepper.

SAUTEED VEAL SCALLOPS IN A WILD MUSHROOM CREAM SAUCE

Steps:

• MAKE THE SAUCE: In a saute pan set over moderately high flame, heat the oil and butter until hot. Add the shallots and cook, stirring, 1 minute.
• Add the mushrooms, thyme and salt and pepper and cook, stirring occasionally, for 5 minutes, or until mushrooms are soft.
• Add the garlic and cook, stirring, 1 minute. Add the wine and reduce by half. Add the demiglace and simmer 5 minutes.
• Add the cream and reduce until lightly thickened. Cover with a round of buttered wax paper and keep hot.
• MAKE THE VEAL: Dredge the veal scallops in flour, shaking off excess, and season with salt and pepper.
• In large skillet set over moderate flame, heat olive oil and butter until hot. Add scallops and saute for 1 minute on each side.
• Transfer to sauce for just a minute and season mixture with fresh lemon juice and Chervil.

ORCHIETTE PASTA WITH WILD MUSHROOM CREAM SAUCE

Steps:

• In a large pot of boiling salted water, cook the pasta until al dente. Drain and return to the pot. Cover to keep warm.
• Meanwhile, in a large saute pan, heat the oil over medium-high heat. Add the mushrooms and cook, stirring, until soft, 3 to 4 minutes. Add the shallots, garlic, thyme, salt, and pepper, and cook, stirring, until fragrant, 2 minutes. Add the cream, increase the heat to high, and bring to a boil. Reduce the heat and simmer until the sauce thickens enough to coat the back of a spoon, about 5 minutes. Add the Parmesan and adjust the seasoning, to taste.
• Add the pasta, stir to coat with the sauce, and cook until the pasta is heated through, 1 minute. Remove from the heat and divide among 4 serving bowls or plates. Sprinkle each serving with chives and serve immediately.

ROASTED LOIN OF BERKSHIRE GRASS-FED VEAL SERVED WITH ROASTED POTATOES WITH WILD RAMPS AND MOREL MUSHROOM SAUCE

Steps:

• Prepare the Morel Mushroom Sauce then reserve. Prepare the Roasted Potatoes with Wild Ramps. Reserve.
• Preheat the oven to 325 degrees F.
• Heat the oil in a large cast iron pan, over medium-high heat. Season the meat all over with salt and pepper. Brown the veal on all sides, about 20 minutes. Transfer the pan to the oven and roast until the meat reaches an internal temperature of 130 degrees F(the loin will be pink at the center), about 20 minutes. Allow the meat to rest in a warm place for 10 to 15 minutes.
• While the veal is roasting, blanch the asparagus in boiling salted water. Refresh it in ice water, then drain and set aside. Just before serving, melt the butter in a large skillet over medium heat. Add the asparagus, season with salt and pepper and cook just until heated through and tender, about 5 minutes.
• To serve, thinly slice the veal. Place a spoonful of Roasted Potatoes with Wild Ramps in the center of each plate. Arrange 2 or 3 slices of veal over the potatoes. Place asparagus around the potatoes, spoon sauce over the meat and serve.
• If using fresh mushrooms clean them by rubbing them with a damp cloth, or briefly submerging them in water, then drain and blot dry. If using dried mushrooms, place them in a medium bowl and cover with boiling water. Set the mushrooms aside until soft, then drain. Chop the fresh or re-hydrated dry mushrooms.
• Heat the butter in a medium saucepan over medium heat. Add the shallots and chopped mushrooms and cook, stirring occasionally, until the mushrooms are almost tender, about 7 minutes. Add the garlic and cook until fragrant, about 3 minutes more. Add the wine, bring to a simmer, cover, and cook until the mushrooms are fully soft, about 5 minutes more. Remove the lid and add the chicken stock. Increase the heat if necessary and simmer, uncovered, until the flavors are blended, 20 minutes or so. Strain the sauce, reserving the mushrooms. Return the sauce to the pot and simmer until it has reduced by 90 percent and has become very concentrated, about 15 minutes. Add the heavy cream and simmer until the sauce coats the back of a wooden spoon. Add lemon juice, salt and pepper to taste. Keep warm over a very low heat. Just before serving, add the reserved mushrooms and fresh herbs.
• Preheat the oven to 350 degrees F.
• Put the ramps in an oven-proof medium skillet. Add the stick of butter, the honey, and enough water to cover the mushrooms. Simmer over medium heat until the water evaporates, about 10 minutes. Continue cooking, stirring occasionally, until the ramps begin to brown. Transfer the pan to the oven and cook until the ramps are tender, about 5 minutes more. Set aside.
• Meanwhile, in a large oven-proof skillet, cook the bacon over medium heat until the fat renders and the bacon begins to crisp, about 10 minutes. Using a slotted spoon, transfer the bacon to a plate lined with paper towels. Add the potatoes to the hot bacon fat. Increase the heat to medium-high then season with salt and pepper. Cook, turning the potatoes in the hot fat until they begin to brown, about 7 minutes. Add the remaining 3 tablespoons of butter to the potatoes. Transfer the potatoes to the oven and continue cooking until the potatoes are tender, about 7 minutes more. Set the potatoes aside. Immediately before serving, warm the potatoes over medium-high heat. Add the ramps and crisp bacon and cook just until heated through.

PASTA WITH CREAMY WILD MUSHROOM SAUCE

Steps:

• Place mushrooms in small bowl. Pour boiling water over. Cover and let stand until mushrooms soften, about 15 minutes. Remove mushrooms from liquid; reserve soaking liquid. Coarsely chop mushrooms; discard any tough stems.
• Combine wine and mushrooms in heavy large skillet. Boil until wine is reduced by half, about 2 minutes. Add cream and tarragon. Slowly pour in mushroom soaking liquid, leaving sediment at bottom of bowl. Boil until sauce is thick enough to coat spoon, about 5 minutes. Mix in green onions and lemon juice. Season with salt and pepper.
• Meanwhile, cook pasta in large pot of boiling salted water until tender but still firm to bite. Drain pasta.
• Add pasta to sauce; toss gently to coat and serve.

ORECCHIETTE PASTA WITH WILD MUSHROOM CREAM SAUCE- EMERIL LAGASSE

Steps:

• In a large pot of boiling salted water, cook the pasta until al dente.
• Drain pasta and return to the pot.
• Cover to keep warm.
• If you are re-constituting dried mushrooms, boil slightly in a separate pot or pan until they have absorbed enough water to make them tender.
• If you are re-constituting dried mushrooms, add the fresh mushrooms to them for about 1 minute to allow them to absorb some of the wild mushroom flavor.
• In a large saute pan, heat the oil over medium-high heat.
• Add the mushrooms and cook, stirring, until soft, 3 to 4 minutes.
• Add the shallots, garlic, thyme, salt, and pepper, and cook, stirring, until fragrant, about 2 minutes.
• Add the cream.
• Increase the heat to high, and bring to a boil.
• Reduce the heat and simmer until the sauce thickens enough to coat the back of a spoon, about 5 minutes.
• Add the Parmesan and adjust the seasoning, to taste.
• Add the pasta, stir to coat with the sauce, and cook until the pasta is heated through, 1 minute.
• Remove from the heat and divide equaly among serving bowls or plates.
• Sprinkle each serving with chives and serve immediately.

ROASTED DUCK BREASTS WITH WILD MUSHROOM STUFFING AND RED-WINE SAUCE

Steps:

• Make the stuffing: Preheat oven to 350 degrees. Bake bread cubes in a single layer on a rimmed baking sheet until just golden, about 25 minutes. Let cool completely. Pulse in a food processor (in batches, if needed) until coarse crumbs form, about 15 seconds; transfer to a bowl. Add 1/4 cup oil; toss well. Spread breadcrumb mixture on the baking sheet, and bake, stirring occasionally, until deep golden brown, about 15 minutes. Transfer to a large mixing bowl.
• Heat remaining 3 tablespoons oil and 2 tablespoons butter in a large skillet over medium-low heat until butter has melted. Add leeks, celery root, and garlic; cook, stirring occasionally, until leeks are soft, about 15 minutes. Raise heat to medium. Stir in mushrooms and thyme; season with salt and pepper. Cook, stirring occasionally, until mushrooms are soft, about 10 minutes. Remove from heat. Stir vegetable mixture into breadcrumb mixture; let cool completely.
• Prepare the duck: Place duck breasts, skin sides up, on a cutting board. Using a sharp knife, score lines, 1/2 inch apart, in a cross-hatch pattern into the fat; cut almost all the way through, but do not cut into flesh. Season both sides with salt and pepper. Cut six 14-inch pieces of kitchen twine. Lay 3 pieces of twine about 2 inches apart on cutting board. Place 1 duck breast half, skin side down, crosswise over twine. Place about 1/2 cup stuffing on top of duck. Top with another breast half, skin side up. Tie together tightly with the twine. Repeat with remaining breasts. Stuffed duck can be refrigerated, covered, overnight. Bring to room temperature before cooking.
• Bake remaining stuffing: Preheat oven to 375 degrees. Butter an 8-inch square baking dish; set aside. Stir together remaining stuffing and 1 1/4 cups stock in a large bowl. Transfer to prepared dish. Bake until top is crisp and pale golden brown but center is moist, about 30 minutes.
• Meanwhile, cook the duck: Heat a large skillet over medium heat. Add duck breasts to skillet. Cook, turning once, until golden brown, 5 to 7 minutes per side. Transfer breasts to a plate; pour fat from skillet into a heatproof container. Return breasts to skillet, and place in oven. Cook until an instant-read thermometer inserted into the thickest part of the meat registers 125 degrees.for rare, 25 to 30 minutes. Transfer to a plate; let rest in a warm place, loosely covered with foil, 15 minutes. Pour fat from skillet.
• Make the sauce: Lightly wipe out skillet, and place over medium-high heat. Add wine; cook until reduced by half, about 5 minutes. Add port, if desired, and stock. Simmer until reduced by half, about 5 minutes. Add accumulated juices from the duck to skillet. Season with salt and pepper; whisk in butter. Pour sauce through a fine sieve into a gravy boat. Slice duck, and serve drizzled with sauce, with baked stuffing on the side.

ROAST CHICKEN WITH WILD MUSHROOM SAUCE

Steps:

• Preheat oven to 375 degrees. Season chicken with salt and pepper. Heat oil in a large ovenproof skillet over medium-high heat. Add chicken, skin side down; cook until golden brown, 4 to 5 minutes. Flip; transfer to oven. Roast until a meat thermometer registers 160 degrees, about 15 minutes. Transfer to a plate; cover.
• Place the skillet over medium heat. Add onion; cook, stirring, 1 minute. Add mushrooms. Cover; cook, stirring occasionally, 3 minutes. Stir in vinegar. Add flour; cook, stirring, 1 minute. Stir in stock and chopped parsley; simmer, stirring, until thickened, about 5 minutes. Stir in cream; season with salt and pepper. Serve with chicken; garnish with parsley sprigs.

BAKED POLENTA WITH WILD MUSHROOM AND TOMATO SAUCE

Steps:

• Prepare polenta and chill.
• Preheat oven to 375 degrees.
• Put tomatoes in saucepan and bring to boil. Let cook until reduced to about 2 cups.
• Heat half of oil in small skillet and add garlic. Cook briefly and add tomatoes, salt and pepper. Add hot pepper flakes.
• Thinly slice mushrooms. Heat remaining oil in skillet and add mushrooms, salt and pepper. Cook briefly, stirring, until mushrooms give up liquid. Cook until liquid evaporates. Add mushrooms to tomato sauce and simmer 3 minutes.
• Cut polenta into 1/2-inch slices. Arrange about 1/3 of slices on bottom of baking dish. Sprinkle with 1/2 mushroom and tomato sauce. Sprinkle with 1/3 of butter and 1/3 of cheese. Add second layer of polenta. Add another layer of tomato and mushroom sauce, another 1/3 of butter and another 1/3 of cheese.
• Add final layer of polenta and sprinkle with remaining butter and cheese.
• Place in oven and bake 20 minutes. Preheat broiler to high. Run dish under broiler until golden brown on top.

NO-CREAM WILD MUSHROOM PASTA SAUCE

Steps:

• Dried Mushrooms -- Rehydrate the mushrooms by adding 2 1/2 cups of boiling water to a bowl with the mushrooms and cover with plastic wrap. They will take about 10-15 minutes. Once they are re-hydrated and soft, thin slice. Don't throw away the liquid. You will be adding that to the broth.
• Mushrooms -- In a large saute pan, add the olive oil and heat to medium high. Add in the mushrooms, onions, scallions, garlic, rosemary, thyme and rosemary. and cook about 7-10 minutes until the mushrooms get brown and the liquid from the mushrooms has evaporated, (mushrooms give off a natural liquid when cooked, but as they brown, the liquid will evaporate).
• Once the mushrooms are brown, add in the broth (reserve 1/4 cup to add to the corn starch to make a slurry or thickening agent. This will be used to thicken your sauce at the end), and the liquid from re-hydrating the mushrooms to the mushroom and onion mixture. Cook on medium to medium low heat for about 8-10 minutes until the broth is reduced by about 1/2.
• Finish -- Add the 1/4 reserved broth with the corn starch to make a slurry. This is what will thicken your sauce. Add to the mushrooms and bring to medium high heat. The sauce will begin to thicken. Continue to cook for a minute or two, and then add in the parsley and check for any seasoning, salt and pepper.
• Serve -- I really love this over a 3-cheese ravioli (just store bought it fine), but you can use any pasta you like. Top with cheese and ENJOY!

ROSEMARY GRILLED CHICKEN THIGHS AND WILD MUSHROOM SAUCE

Steps:

• Heat a grill pan over high heat. Drizzle chicken thighs with oil, season with salt, pepper and rosemary. Grill chicken 5 minutes on each side and remove from heat to rest for 5 minutes.
• Place stock in a small bowl and cover. Heat in microwave on high for 2 minutes. Remove stock from microwave with oven mitt. Add dried porcini to the dish and replace the cover. Steep porcinis in stock 5 to 10 minutes to reconstitute mushrooms. This may also be done on the stovetop. Simmer broth, and mushrooms for 10 minutes over low heat.
• In a medium skillet, add 2 tablespoons olive oil, saute pancetta, crushed garlic and chopped shallot over medium heat for 3 minutes, to crisp pancetta at edges. Add sliced portobello mushrooms to the pan and season with salt and pepper. Saute mushrooms 10 minutes, or until dark and tender. Add flour and cook 1 minute. Add red wine to the pan and reduce by 1/2, about 1 minute. Add reserved stock and porcini mushrooms to the pan and simmer together 1 to 2 minutes longer to combine.
• Slice chicken thighs and fan out on a plate. Ladle thick mushroom sauce down over sliced chicken and serve.

WILD MUSHROOM RAVIOLI IN SAGE AND BROWN BUTTER SAUCE

Steps:

• Heat oil in a skillet over medium heat.
• Add the shallot and saute for 2 minutes. Add the mushrooms and cook for 7-10 minutes or until soft. Add the wine and thyme, and cook for 2 more minutes. Season with salt and pepper if you like. Cool.
• Cut 1 won ton wrapper in half to form two rectangles. Brush the edges of the won ton half with water, and place 1 teaspoons of the mushroom mixture on one side. Fold the wrapper in half to make a square ravioli.
• Press the edges to seal. Place on an unlined baking sheet. Repeat with the other won tons until you use up all the filling.
• Melt your butter in a large skillet over low heat. Add the sage leaves and cook for 8-10 minutes, or until the fatty solids in the butter sink to the bottom of the pan and turn nutty brown.
• Meanwhile, cook the ravioli in a large pot of boiling salted water for 2 minutes or until they float to the top. I found leaving them for 2 minutes was a bit long. As long as the won ton came to the top it was done.
• Transfer the cooked ravioli to the skillet with the brown butter with a slotted spoon. Toss with the butter. Season with salt and pepper if you wish and sprinkle with the cheese.
• Serve warm.
• Bon Appetit!

RICOTTA-TALEGGIO RAVIOLI WITH WILD MUSHROOM SAUCE

Steps:

• Make the dough. Mound the flour on a large cutting board and make a wide well in the middle. Add the eggs and olive oil and season with salt. Beat the eggs with a fork, then use the fork to break the wall of the well and incorporate the flour into the eggs. Gather the dough into a ball; don't worry if there are lumps.
• Knead the dough. Using the heels of your hands, push the dough away from you, then fold it back over itself and push again (put your whole body into it!). Continue kneading until the dough is smooth and supple, 10 to 15 minutes. Wrap the dough in plastic wrap and let rest at least 1 hour at room temperature.
• Mix the filling. Mix the ricotta, taleggio, eggs, parmigiano and parsley in a bowl and season with salt. Transfer the filling to a large pastry bag and refrigerate.
• Roll out the dough. Cut the dough into four pieces. Flatten one piece slightly, then run it through the widest setting on a pasta roller twice, dusting with flour in between if it feels sticky. Fold the length of dough into thirds and run it through the roller two to three more times. Continue running the dough through the roller, reducing the width setting between each run, until you reach the second-to-last setting and the dough is about 1/16 inch thick. Repeat with the remaining pieces of dough. Layer half of the dough sheets between parchment paper, wrap in plastic wrap and freeze for up to 1 month (you'll only need half of the dough for the ravioli recipe).
• Assemble the ravioli. Place the lengths of dough on a floured surface. Lightly brush the lower half of each strip (the part closest to you) with water. Snip the corner off the pastry bag; pipe 1-inch balls of filling, 2 inches apart, onto the lower half of each strip. Fold the dough over the filling to meet the bottom edge. Press around each ball of filling with your index fingers, making sure there are no air bubbles. Cut out the ravioli using a 2-to-3-inch round fluted cutter. Transfer to a baking sheet dusted with semolina.
• Make the sauce. Drizzle olive oil into a large deep pan. Add the pancetta and garlic and place over medium-high heat. When the garlic is light brown and fragrant, discard it. When the pancetta is crisp, add the mushrooms, season with salt and saute until the mushrooms are soft and wilted, about 5 minutes. Pour in the chicken stock, season with salt and cook until the sauce is reduced by half. Add the butter and cook, shaking the pan, until the sauce thickens and looks velvety. Season with salt, if necessary.
• Cook the ravioli. Bring a large pot of well-salted water to a boil; add the ravioli and cook 3 to 4 minutes. Transfer with a skimmer or slotted spoon to the pan with the sauce. Bring the sauce to a boil, shaking the pan. Sprinkle in the cheese and swirl to combine. Garnish with chives and more cheese.

FUSILLI WITH WILD MUSHROOM CREAM SAUCE

Steps:

• Place porcini mushrooms in small bowl. Pour 2 cups hot water over. Let stand until mushrooms soften, about 25 minutes. Using slotted spoon, transfer mushrooms to work surface and coarsely chop. Discard soaking liquid.
• Heat olive oil in heavy large pot over medium-high heat. Add porcini, crimini and portobello mushrooms, minced garlic and bay leaf. Sauté until mushrooms are brown and tender, stirring often, about 10 minutes. Add Marsala and simmer until almost all liquid evaporates, scraping up browned bits, about 1 minute. Season mushroom mixture to taste with salt and pepper. Remove from heat. (Mushroom mixture can be prepared 1 day ahead. Cover and refrigerate.)
• Cook pasta in large pot of boiling salted water until just tender but still firm to bite, stirring occasionally. Drain well.
• Mix beef stock and whipping cream into mushroom mixture and simmer 3 minutes. Add 1 cup Parmesan cheese, butter and drained pasta; toss to coat. Cook until sauce coats pasta, stirring frequently, about 2 minutes. Season to taste with salt and pepper. Serve, passing additional grated Parmesan separately.
• *Dried porcini mushrooms are available at Italian markets, specialty foods stores and many supermarkets.

CUMIN PORK ROAST WITH WILD MUSHROOM SAUCE

Steps:

• Preheat oven to 375°F. Sprinkle pork with salt and pepper. Rub 3 teaspoons cumin over pork. Place roasting pan. Roast pork until meat thermometer inserted into center registers 150°F, about 50 minutes.
• Meanwhile, melt 2 tablespoons butter in large skillet over medium-high heat. Add mushrooms, 1/2 cup shallots, garlic and 1 tablespoon jalapeño; sauté until mushrooms are very tender and beginning to brown, about 15 minutes. Remove from heat. Add chopped cilantro, oregano and 1 teaspoon cumin. Season with salt and pepper. Set aside.
• Transfer pork to platter. Tent with foil. Add broth to roasting pan; scrape up any browned bits. Transfer to heavy medium saucepan. Gradually whisk flour into Sherry in medium bowl to blend. Whisk Sherry mixture, 1 tablespoon butter, 1 tablespoon shallots and 1 teaspoon jalapeño into broth; bring to a boil, whisking until smooth. Stir in mushroom mixture and any accumulated juices from pork on platter. Boil until mixture thickens to sauce consistency, stirring occasionally, about 5 minutes. Season with salt and pepper.
• Slice pork. Garnish with cilantro sprigs. Serve pork with sauce.

SAUSAGE AND WILD MUSHROOM LASAGNE WITH RED PEPPER TOMATO SAUCE

Steps:

• Make red pepper tomato sauce:
• In a heavy skillet measuring at least 12 inches across the top cook sausage over moderate heat, stirring and breaking it up, until cooked through and transfer with a slotted spoon to a bowl. Pour off all but 1 tablespoon fat from skillet and add 1 tablespoon oil, white mushrooms, and salt and pepper to taste. Cook white mushrooms over moderate heat, stirring, until all liquid given off is evaporated and add to sausage. Add remaining tablespoon oil to skillet and cook onion with garlic, rosemary, red pepper flakes, and salt and pepper to taste until softened. Stir in bell peppers and tomatoes and cook, covered, over moderately low heat, stirring occasionally, until peppers are very soft, about 20 minutes. In a blender or food processor purée tomato pepper mixture in batches, transferring to a large saucepan as puréed, and stir in vinegar. Add sausage mixture to sauce and simmer, uncovered, 5 minutes.
• Preheat oven to 375°F. and oil a 13- by 9-inch baking dish.
• Make wild mushroom mixture:
• In a small bowl soak porcini in the hot water 30 minutes and drain liquid through a sieve lined with a rinsed and squeezed paper towel into a measuring cup. reserve 1/2 cup soaking liquid and chop porcini fine. In a heavy saucepan melt butter over moderately low heat. Add flour and cook roux, whisking, 3 minutes. Add milk and reserved soaking liquid in a stream, whisking, and bring to a boil, whisking. Stir in porcini, nutmeg, and salt and pepper to taste and simmer over low heat, whisking occasionally, until thickened, about 5 minutes.
• In a large bowl of cold water soak lasagne squares until softened, about 15 minutes. Drain squares and pat dry between paper towels. In a small bowl toss together mozzarella and Parmesan. Spread enough red pepper tomato sauce in prepared dish to coat bottom. Over sauce in dish layer in this order: 2 lasagne sheets (cut to fit in one layer), a third wild mushroom mixture, a third cheese, and a third remaining red pepper tomato sauce. Repeat twice, reversing order of red pepper tomato sauce and cheese at end of last round of layering so that cheese is on top.
• Bake lasagne in middle of oven 35 to 40 minutes, or until golden, and let stand 10 minutes before serving.