Best 4 Spinach Mushroom Brunch 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.

MAKE-AHEAD SPINACH AND MUSHROOM BREAKFAST SANDWICHES

Steps:

• Preheat the oven to 375 degrees. Spray a 9-by-13-inch baking pan with nonstick cooking spray or grease with butter.
• Heat 1 tablespoon of the olive oil over medium-high heat. Add the mushrooms and cook, stirring occasionally, until wilted and beginning to brown; about 5 minutes. Add the spinach, 1 teaspoon salt and a few grinds of pepper. Cook until spinach just begins to wilt, stirring occasionally, about 2 minutes. Remove pan from heat and set aside to cool.
• Whisk the eggs, milk, 1 teaspoon salt and a few grinds of pepper together in a large bowl. Gently whisk in the cooled mushroom mixture, then pour the egg mixture into the prepared pan. Bake until puffed and set, 15 to 20 minutes. Remove from the oven and let cool.
• Place the English muffins cut-side up on a baking sheet and brush with some butter if using. Bake until slightly toasty, 3 to 4 minutes.
• Once the eggs are cool enough to handle, use a large round biscuit cutter (about 3 3/4 inches in diameter) or the rim of a juice glass to cut out 6 rounds of egg. (For ways to use the leftover egg scraps, see Cook's Note.) Using an offset spatula or a butter knife, remove each egg round from the pan and place on bottom half of an English muffin. Top each with a slice of Swiss cheese and the other muffin half. Wrap each sandwich individually with aluminum foil, put in a resealable plastic bag and freeze up to 1 month or refrigerate for up to 1 week.
• To reheat, unwrap a sandwich and place on a paper towel on a microwave-safe dish. Microwave 1 to 1 1/2 minutes, until the cheese is melted and eggs are warmed through. Alternatively, thaw a foil-wrapped frozen sandwich overnight in the refrigerator, then bake in a 425-degree F oven until warmed through and the cheese is melted, about 10 minutes.

SPINACH AND MUSHROOM CASSEROLE

Steps:

• Preheat oven to 350 degrees F (175 degrees C). Grease a 2 quart casserole dish.
• Melt 2 tablespoons butter in a large skillet over medium heat. Saute mushrooms until tender, about 8 to 10 minutes.
• Meanwhile, place spinach in a large pot. Wilt over medium heat; drain, squeezing or pressing out excess water. Place in prepared baking dish and top with salt, 4 tablespoons melted butter, onion and 1/2 of the cheese. Layer mushrooms on top and sprinkle with remaining cheese.
• Bake in preheated oven for 20 minutes.

SPINACH AND MUSHROOM CASSEROLE

Steps:

• Preheat oven to 325 degrees.
• Wash fresh spinach, drain well and chop coarsely, or drain frozen spinach very well after thawing.
• Melt butter in saucepan, saute onion and mushrooms for 5 minutes.
• Blend in flour, salt, pepper and nutmeg.
• Add cream gradually, stirring steadily to boiling point; cook over low heat 5 minutes.
• Arrange successive layers of spinach and sauce in a buttered 1 1/2 qt casserole ending with sauce.
• Sprinkle with cheese.
• Place in a shallow pan of hot water.
• Bake for 45 minutes.