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A freshly baked weekday breakfast casserole in a baking dish, ready to serve.

Hearty Sausage and Cheddar Breakfast Casserole

This hearty breakfast casserole features savory sausage, sharp cheddar cheese, and bread soaked in an egg and milk mixture, perfect for a make-ahead morning meal.
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Prep Time 30 minutes
Cook Time 50 minutes
Total Time 1 hour 30 minutes
Servings: 8 servings
Calories: 420
Ingredients Equipment Method Notes

Ingredients
  

Main Ingredients
  • 1 lb bulk breakfast sausage cooked and crumbled
  • 6 slices white or whole wheat bread cubed
  • 1 1/2 cups shredded sharp cheddar cheese
  • 8 large eggs
  • 2 cups milk whole or 2%
  • 1/2 teaspoon salt
  • 1/4 teaspoon black pepper
  • 1/2 teaspoon garlic powder
  • 1/4 teaspoon onion powder
  • 1 small onion optional, diced and sautéed
  • 1/2 cup diced bell pepper optional, sautéed

Equipment

  • Large skillet
  • 9x13 inch (23x33 cm) baking dish
  • Large bowl
  • Whisk
  • Measuring cups and spoons
  • Cutting board
  • Knife
  • Plastic wrap
  • Aluminum foil

Method
 

Preparation
  1. Cook the breakfast sausage until browned and drain excess fat. Sauté diced onion and bell pepper if using. Cube the bread into 1-inch pieces.
  2. Grease a 9x13 inch baking dish and spread the cubed bread evenly in the bottom.
  3. Sprinkle the cooked sausage (and sautéed vegetables if using) over the bread cubes, then top evenly with the shredded cheddar cheese.
  4. In a large bowl, whisk together the eggs, milk, salt, black pepper, garlic powder, and onion powder until well combined.
  5. Carefully pour the egg mixture evenly over the ingredients in the baking dish, ensuring all are moistened.
  6. Cover the casserole dish tightly and refrigerate for at least 4 hours, or preferably overnight, to allow flavors to meld.
Baking
  1. Preheat your oven to 350°F (175°C) and remove the plastic wrap from the casserole.
  2. Bake for 45-55 minutes until golden brown and a knife inserted into the center comes out clean; loosely tent with aluminum foil if browning too quickly.
  3. Let the casserole rest for 5-10 minutes before slicing and serving.

Notes

This casserole is perfect for meal prepping; assemble it the night before and bake it in the morning for a stress-free breakfast or brunch.