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Best Baked Egg Casserole Breakfast Recipe

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  • Author: clara
  • Prep Time: 15 minutes
  • Cook Time: 40 minutes
  • Total Time: 55 minutes
  • Yield: 8 servings 1x
  • Category: Breakfast, Brunch
  • Method: Baking
  • Cuisine: American

Description

This easy Baked Egg Casserole is a perfect breakfast or brunch dish. It’s loaded with fluffy eggs, cheese, and savory breakfast favorites like sausage, veggies, and hash browns. Make it ahead for a stress-free morning or bring it to your next potluck for a guaranteed crowd-pleaser!


Ingredients

Units Scale
  • 12 large eggs
  • 1 cup milk (whole or 2%)
  • 1 cup shredded cheddar cheese
  • 1 cup shredded mozzarella cheese
  • 1 lb breakfast sausage, cooked and crumbled (or bacon/ham)
  • 1 cup diced bell peppers (red, green, or yellow)
  • 1 cup diced onion
  • 2 cups frozen shredded hash browns (thawed)
  • 1 cup fresh spinach, roughly chopped (optional)
  • 1 tsp garlic powder
  • 1 tsp onion powder
  • 1/2 tsp salt
  • 1/2 tsp black pepper
  • 1 tbsp olive oil (for sautéing)
  • Cooking spray

Instructions

  1. Preheat the Oven:

    • Preheat your oven to 350°F (175°C). Grease a 9×13-inch baking dish with cooking spray.
  2. Cook the Sausage and Vegetables:

    • In a skillet, heat olive oil over medium heat.
    • Add diced onions and bell peppers, sauté until softened (about 5 minutes).
    • Stir in cooked sausage and spinach (if using), and cook until spinach is wilted.
    • Remove from heat and set aside.
  3. Mix the Egg Mixture:

    • In a large bowl, whisk together eggs, milk, garlic powder, onion powder, salt, and pepper.
  4. Assemble the Casserole:

    • Spread hash browns evenly in the bottom of the baking dish.
    • Layer the sausage and vegetable mixture over the hash browns.
    • Sprinkle with shredded cheeses.
    • Pour the egg mixture evenly over the top.
  5. Bake:

    • Bake uncovered for 35-40 minutes, or until the eggs are set and the top is golden.
    • A toothpick inserted into the center should come out clean.
  6. Serve:

    • Let the casserole cool for a few minutes before slicing. Serve warm.

 



Notes

  • Make-Ahead Tip: Assemble the casserole the night before, cover, and refrigerate. In the morning, bake as directed.
  • Storage: Store leftovers in the refrigerator for up to 3 days. Reheat in the microwave or oven.

 

  • Freezing: You can freeze individual portions wrapped tightly for up to 2 months.