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Vegetarian Overnight Breakfast Strata

This Vegetarian Overnight Breakfast Strata is a make-ahead breakfast that layers savory veggies, creamy cheese, and fluffy eggs for a crowd-pleasing delight!
Prep Time15 minutes
Cook Time55 minutes
Total Time1 hour 10 minutes
Course: Breakfast, Brunch
Cuisine: American
Keyword: Comfort Food, Make Ahead, Vegetarian
Servings: 8 servings

Ingredients

  • 1 tablespoon olive oil For sautéing the vegetables.
  • 1 cup chopped onion (about 1 small onion)
  • 1 cup chopped green bell pepper (about 1 medium green bell pepper)
  • 1 cup white button mushrooms (sliced)
  • 9 eggs
  • 3 cups whole milk (unsweetened oat milk also works)
  • 3/4 teaspoon kosher salt
  • 1/4 teaspoon freshly ground black pepper
  • 12 slices white bread (crusts removed)
  • 10 ounces medium cheddar cheese (shredded, about 2 1/2 cups)
  • Parsley (minced, for garnish)

Instructions

  • Begin by heating the olive oil in a skillet over medium heat. Add the chopped onion and sauté for about 3-4 minutes until translucent. Toss in the green bell pepper and mushrooms, cooking for an additional 5-7 minutes until the vegetables are tender. Season with a pinch of salt and pepper, then remove from heat.
  • In a large mixing bowl, whisk together the eggs, whole milk, kosher salt, and freshly ground black pepper until well combined. This will create a creamy custard that envelops the strata.
  • In the prepared baking dish, layer half of the bread slices on the bottom. Pour half of the egg mixture over the bread, followed by half of the sautéed vegetables and a generous sprinkling of shredded cheddar cheese. Repeat the layers with the remaining bread, egg mixture, vegetables, and cheese.
  • Cover the baking dish with plastic wrap or aluminum foil and refrigerate overnight. This allows the bread to soak up the egg mixture, resulting in a beautifully custardy texture.
  • The next morning, preheat your oven to 350°F (175°C). Remove the cover from the baking dish and bake the strata for 45-55 minutes, or until the top is golden brown and a knife inserted in the center comes out clean.
  • Once baked, let the strata cool for a few minutes. Garnish with minced parsley for a fresh touch before slicing and serving. Enjoy this dish warm, paired with fresh fruit or a side salad for a complete breakfast experience.

Equipment

  • Skillet
  • Mixing Bowl
  • 9x13 inch Baking Dish
  • Whisk
  • Sharp Knife
  • Spatula

Notes

  • Consider adding jalapeños or red pepper flakes for a spicier kick.
  • Mix different types of cheese such as mozzarella or feta for a unique twist.
  • Use day-old bread to ensure it holds up well in the egg mixture.