Best 10 Overnight Mushroom Egg Casserole Recipes

SPINACH, MUSHROOM AND CHEESE BREAKFAST CASSEROLE

Steps:

• Grease a 9-by-13-inch (3-quart) casserole dish with oil.
• Toss the bread cubes with 2 tablespoons of the oil, 1/4 teaspoon salt and a few grinds of pepper in a large bowl. Heat a large skillet over medium heat. Add the bread to the skillet, and cook, tossing occasionally, until toasted and golden brown, about 8 minutes. Return the toasted bread to the bowl to cool.
• Wipe out the skillet. Heat the remaining 2 tablespoons oil over medium-high heat until it starts to shimmer. Add the mushrooms in one layer (resist the urge to stir right away), and cook until they start to brown, about 3 minutes; stir, then continue to brown for 2 minutes more. Add the garlic, thyme, 1/4 teaspoon salt and some pepper, stir continuously for 1 minute, then fold in the spinach and another 1/4 teaspoon salt. Continue to cook, stirring often, until the spinach is wilted, 1 to 2 minutes. Remove from the heat.
• Place half the bread cubes in the prepared casserole dish, and sprinkle them with half each of the Gruyere and Parmesan. Add the mushroom-spinach mixture in an even layer. Top with the remaining bread cubes, Gruyere and Parmesan.
• In a large bowl, whisk together the eggs, half-and-half, 1/2 teaspoon salt and several grinds of pepper. Pour the egg mixture into the casserole dish. Cover with plastic wrap, and refrigerate for at least 6 hours up to overnight. Remove the casserole from the refrigerator 30 minutes before baking.
• Preheat the oven to 350 degrees F. Bake the casserole until the custard is set and the top is golden brown, 50 to 55 minutes. Cool for at least 15 minutes before serving warm or at room temperature.

OVERNIGHT MUSHROOM EGG CASSEROLE

Steps:

• In a small saucepan, melt 3 tablespoons butter. Stir in flour until smooth; gradually add milk. Bring to a boil; cook and stir for 2 minutes or until thickened. Stir in the mushrooms; set aside., In a large bowl, whisk the eggs, cream, salt and pepper. In a large skillet, heat the remaining butter until hot. Add egg mixture; cook and stir over medium heat until eggs are completely set. , Transfer to a greased 11x7-in. baking dish; top with mushroom mixture. Sprinkle with bacon. Cover and refrigerate overnight., Remove from the refrigerator 30 minutes before baking. Bake, uncovered, at 325° for 32-36 minutes or until heated through.

SPINACH AND MUSHROOM EGG CASSEROLE

Steps:

• Preheat oven to 350 degrees F (175 degrees C). Grease a 9x13-inch baking dish with 1 teaspoon butter.
• Whisk eggs in a large bowl. Add cottage cheese, Monterey Jack cheese, 1/2 cup melted butter, flour, spinach, mushrooms, baking powder, and salt; mix. Pour egg mixture into prepared baking dish.
• Bake in the preheated oven until eggs are set and a knife inserted into the center comes out clean, about 35 minutes.

OVERNIGHT EGG CASSEROLE

Steps:

• Place bread cubes in a greased 13x9-in. baking dish. Sprinkle with cheese; set aside. In a skillet, cook sausage over medium heat until no longer pink; drain. Crumble sausage over the cheese and bread. Beat the eggs, milk, mustard, soup and broth; pour over sausage. Cover and refrigerate overnight or at least 2-3 hours before baking., Remove from the refrigerator 30 minutes before baking. Bake, uncovered, at 350° for 50-60 minutes or just until set. Let stand for 5 minutes before cutting.

MUSHROOM AND EGG CASSEROLE

Steps:

• Saute onions and mushrooms in butter in skillet over medium heat for about 3-5 minutes.
• In a large bowl, beat together the eggs, milk, and pepper.
• Stir in cheese and the mushroom mixture and bacon.
• Pour into a greased 2-quart rectangular baking dish (12x7-1/2x2-inch).
• Bake in 350 degree F oven for 35-40 minutes or until puffed and a knife inserted in center comes out clean.
• Let stand 5-10 minutes before cutting.
• Serve warm.

OVERNIGHT MUSHROOM EGG CASSEROLE

Steps:

• In a saucepan, melt 3 tablespoons butter. Stir in flour until smooth; gradually add milk. Bring to a boil; cook and stir for 2 minutes or until thickened. Stir in the mushrooms; set aside.
• In a bowl, whisk the eggs, cream, salt and pepper. In a skillet, heat the remaining butter until hot. Add egg mixture; cook and stir over medium heat until eggs are completely set. Transfer to a greased 11-in. x 7-in. x 2-in. baking dish; top with mushroom mixture. Sprinkle with bacon. Cover and refrigerate overnight.
• Remove from the refrigerator 30 minutes before baking. Bake, uncovered, at 325 degrees F for 32-36 minutes or until heated through.

OVERNIGHT MUSHROOM EGG CASSEROLE

Steps:

• In a saucepan, melt 3 tablespoons butter. Stir in flour until smooth; gradually add milk. Bring to a boil; cook and stir for 2 minutes or until thickened. Stir in the mushrooms; set aside.
• In a bowl, whisk the eggs, cream, salt and pepper. In a skillet, heat the remaining butter until hot. Add egg mixture; cook and stir over medium heat until eggs are completely set. Transfer to a greased 11-in. x 7-in. x 2-in. baking dish; top with mushroom mixture. Sprinkle with bacon. Cover and refrigerate overnight.
• Remove from the refrigerator 30 minutes before baking. Bake, uncovered, at 325 degrees F for 32-36 minutes or until heated through.

OVERNIGHT MUSHROOM EGG CASSEROLE

Steps:

• In a saucepan, melt 3 tablespoons butter. Stir in flour until smooth; gradually add milk. Bring to a boil; cook and stir for 2 minutes or until thickened. Stir in the mushrooms; set aside.
• In a bowl, whisk the eggs, cream, salt and pepper. In a skillet, heat the remaining butter until hot. Add egg mixture; cook and stir over medium heat until eggs are completely set. Transfer to a greased 11-in. x 7-in. x 2-in. baking dish; top with mushroom mixture. Sprinkle with bacon. Cover and refrigerate overnight.
• Remove from the refrigerator 30 minutes before baking. Bake, uncovered, at 325 degrees F for 32-36 minutes or until heated through.

OVERNIGHT CHEESE AND EGG CASSEROLE

Steps:

• Place sausage in large, deep skillet. Cook over medium-high heat until evenly browned. Drain, crumble and set aside.
• In a lightly greased 9x13 inch baking dish, arrange the croutons in a single layer. Layer with all cheeses and top with cooked sausage.
• In a large bowl, beat together the eggs, half-and-half, milk, mustard, onion, salt, and pepper. Pour into the dish over the sausage.
• Cover, and refrigerate overnight.
• The next morning, bake in an oven preheated to 350°F for 45 to 60 minutes.
• Let sit for 20 minutes before serving.

OVERNIGHT MUSHROOM EGG CASSEROLE

Steps:

• In a saucepan, melt 3 tablespoons butter. Stir in flour until smooth; gradually add milk. Bring to a boil; cook and stir for 2 minutes or until thickened. Stir in the mushrooms; set aside.
• In a bowl, whisk the eggs, cream, salt and pepper. In a skillet, heat the remaining butter until hot. Add egg mixture; cook and stir over medium heat until eggs are completely set. Transfer to a greased 11-in. x 7-in. x 2-in. baking dish; top with mushroom mixture. Sprinkle with bacon. Cover and refrigerate overnight.
• Remove from the refrigerator 30 minutes before baking. Bake, uncovered, at 325 degrees F for 32-36 minutes or until heated through.