This Broccoli Mushroom and Cheese Strata Eggbake is a savory make-ahead breakfast casserole layered with hearty vegetables, eggs, cheese, and crusty bread. Perfect for brunch, holidays, or weekly meal prep.
Author:Laura
Prep Time:20 minutes
Cook Time:50 minutes
Total Time:1 hour 10 minutes
Yield:8 servings
Category:Breakfast, Brunch, Main
Method:Baked
Cuisine:American
Diet:Vegetarian
Ingredients
8 large eggs
2 cups whole milk or half-and-half
6 cups crusty bread, cubed (preferably day-old)
2 cups broccoli florets, lightly steamed or blanched
1 1/2 cups mushrooms, sliced
1 cup shredded cheddar cheese (or cheese of choice)
1 small onion, chopped
2 cloves garlic, minced
1 tablespoon olive oil or butter
1 teaspoon salt
1/2 teaspoon black pepper
Optional: 1 teaspoon Dijon mustard, 1/2 teaspoon dried thyme, red pepper flakes to taste
Instructions
Heat olive oil or butter in a skillet over medium heat. Sauté onions and mushrooms until softened and golden, about 5–7 minutes. Add garlic and cook for 1 more minute. Set aside.
Lightly steam or blanch the broccoli florets until just tender. Drain and set aside.
Grease a 9×13-inch baking dish. Layer the cubed bread, sautéed vegetables, broccoli, and shredded cheese evenly in the dish.
In a large bowl, whisk together the eggs, milk or half-and-half, salt, pepper, and optional seasonings (Dijon mustard, thyme, red pepper flakes).
Pour the egg mixture evenly over the layered ingredients. Press down gently to help the bread soak up the custard.
Cover and refrigerate for at least 30 minutes, or overnight for best results.
Preheat oven to 350°F (175°C). Remove the strata from the fridge while the oven preheats.
Bake uncovered for 45–55 minutes, or until the center is set and the top is golden brown.
Let rest for 5–10 minutes before slicing and serving.
Notes
Day-old bread works best to absorb the custard without becoming soggy.
Use any cheese you like—Swiss, Gruyère, feta, or mozzarella are great options.
For added protein, include cooked sausage, ham, or bacon.
Make individual servings in a muffin tin for grab-and-go portions.
Reheat leftovers in the microwave or oven with a splash of milk to maintain creaminess.