Best 7 Root Vegetable Au Gratin Recipes

ROOT-VEGETABLE GRATIN

Steps:

• Preheat oven to 350 degrees.
• Spray a shallow 9-by-13-inch baking dish with nonstick cooking spray. Sprinkle bottom of dish with salt and pepper. Set aside 1 cup cheese. Place a layer of sweet potatoes, in an overlapping fashion, on bottom of baking dish; sprinkle with some of the remaining 2 cups cheese. Top with a layer of yellow beets, overlapping in the same fashion; sprinkle with more of the remaining cheese. Repeat process making a layer of parsnips, followed by celery root, and Yukon gold potatoes, topping each layer evenly with some of the remaining cheese.
• Gently pour cream over vegetables. Cover baking dish with parchment paper-lined aluminum foil; place baking dish on a rimmed baking sheet. Transfer to oven and bake until a knife is easily inserted into gratin. Uncover and sprinkle reserved cheese over top; increase oven temperature to 425 degrees. Return baking dish to oven and continue baking until cheese is browned and bubbly, about 15 minutes more.
• Remove baking dish from oven and let gratin stand 30 minutes before serving.

ROOT VEGETABLE GRATIN

Steps:

• 1. Preheat the oven to 400 degrees F. Lightly grease a 13- x 9-inch baking dish. Using a mandoline or sharp knife, cut the potatoes, beet, fennel and parsnips into 1/8-inch-thick slices. Toss together the vegetable slices, salt, and 3/4 cup of the cream in a large bowl.
• 2. Spread half of the mixture evenly in the prepared baking dish. Top with 1 cup of the Parmesan. Top evenly with the remaining vegetable mixture. Pour the remaining 3/4 cup cream over the vegetables, and top with the remaining 1/2 cup Parmesan. Cover loosely with aluminum foil. Bake for 1 hour and 10 minutes.
• 3. Uncover and bake until the vegetables are tender and the cheese is golden brown, another 20 to 25 minutes. Transfer to a wire rack; cool for 15 minutes before serving with some black pepper ground over the top.

ROOT VEGETABLE AU GRATIN

Steps:

• Arrange the potatoes, rutabaga, turnip and parsnip in a greased 13-in. x 9-in. baking dish., In a small saucepan, combine the cream, rosemary, flour and seasoned salt. Bring to a gentle boil. Remove from the heat; pour over vegetables. Sprinkle with cheese., Cover and bake at 375° for 30 minutes. Uncover; bake for 20-25 minutes longer or until bubbly and vegetables are tender.

RAINBOW ROOT VEGETABLE GRATIN

Steps:

• Peel the vegetables (or leave the potatoes unpeeled for more vitamin content). Slice all vegetables into rounds no more than 1/8" thick. Mince the garlic fine. Rub the bottom and sides of a large oval glass or ceramic casserole pan with some of the butter. Now lay the sliced vegetables in layers in the pan, using one type of vegetable per layer. Sprinkle each layer with salt and pepper to taste, then with minced garlic and grated Gruyere; dot each layer with pieces of butter. When all the veggies have been layered, pour in the milk to come halfway up the vegetable layers. Cover with foil and bake 30 minutes at 350 degrees. Remove the foil, dot the top of the casserole with the goat cheese, and bake 30 minutes more, or until vegetables are soft, cheese has turned golden, and the casserole is bubbly. Let it sit for 10 minutes, then sprinkle with the parsley and serve directly from the casserole.

ROOT VEGETABLE GRATIN

Steps:

• With a sharp knife peel rutabaga and cut into 1/8-inch-thick wedges. In a large saucepan of boiling salted water cook rutabaga until crisp-tender, 6 to 8 minutes, and transfer with a slotted spoon to a colander. Drain rutabaga and pat dry between paper towels.
• Peel turnips and cut into 1/8-inch-thick wedges. Cook turnips in boiling salted water until crisp-tender, 3 to 4 minutes, and transfer with slotted spoon to colander. Drain turnips and pat dry between paper towels.
• Peel parsnips and cut diagonally into 1/8-inch-thick slices. Cook parsnips in boiling salted water until crisp-tender, 3 to 4 minutes, and transfer with slotted spoon to colander. Drain parsnips and pat dry between paper towels.
• In a bowl toss together vegetables. Vegetables may be cooked 1 day ahead and chilled, covered.
• Preheat oven to 350° F. and butter a 2-quart gratin dish, about 12 by 9 by 2 inches.
• In gratin dish arrange one third vegetables and sprinkle with 1 tablespoon flour, 1/4 cup Gruyère, and salt and pepper to taste. Top cheese with half of remaining vegetables, remaining tablespoon flour, 1/4 cup cheese, and salt and pepper to taste. Arrange remaining vegetables over cheese and pour cream and milk over vegetables.
• Sprinkle remaining 3/4 cup cheese over vegetables and bake in middle of oven, covered, 30 minutes. Uncover gratin and bake until bubbling and golden, about 40 minutes more.

CHEF JOHN'S ROOT VEGETABLE GRATIN

Steps:

• Preheat the oven to 375 degrees F (190 degrees C).
• Bring a large pot of generously salted water to a boil. Add the vegetables, and cook uncovered for 3 minutes. Drain in a colander, then immediately immerse in ice water for several minutes until cold to stop the cooking process. Once the vegetables are cold, drain well, and set aside.
• Cook garlic and butter in a large skillet over medium heat until garlic starts sizzling, about 3 minutes.
• Stir in chicken broth, heavy cream, thyme, nutmeg, and cayenne pepper; cook until mixture begins to simmer, about 5 minutes.
• Coat a 9x13-inch baking dish with olive oil and spread vegetables evenly over the oil.
• Pour broth and cream mixture over vegetables and top with half of the grated Parmigiano-Reggiano cheese.
• Cover baking dish loosely with aluminum foil, place on a baking sheet, and bake in the preheated oven for 40 minutes.
• Remove baking dish from the oven and top with remaining Parmigiano-Reggiano. Bake uncovered until vegetables are browned, bubbling, and tender, about an additional 30 minutes.
• Remove from the oven and let rest for 20 minutes.

EASY ROOT VEGETABLE GRATIN

Steps:

• Preheat oven to 400 degrees F (200 degrees C). Combine chicken broth and butter in a 9x13-inch baking dish; place dish in oven to melt butter while oven preheats.
• Toss baking potatoes, sweet potatoes, celery root, parsnips, salt, and black pepper together in a bowl. Pour into prepared baking dish and stir to coat vegetables with broth mixture. Cover the baking dish with aluminum foil.
• Roast vegetables in the preheated oven for 40 minutes. Uncover the baking dish and discard aluminum foil. Pour heavy whipping cream over vegetables and sprinkle Gruyere cheese over the top. Continue baking until vegetables are tender and cheese is melted and golden, about 30 minutes. Cool for 10 minutes before serving.