Breakfast Sausage Casserole (Print Version)

Hearty baked dish with savory sausage, fluffy eggs, and melted cheese on golden bread cubes. Perfect for feeding a crowd or meal prep.

# What You'll Need:

→ Meats

01 - 1 pound breakfast sausage, casings removed

→ Vegetables & Aromatics

02 - 1 small yellow onion, finely chopped
03 - 1/2 red bell pepper, diced

→ Dairy & Eggs

04 - 8 large eggs
05 - 2 cups whole milk
06 - 2 cups shredded cheddar cheese
07 - 1/2 cup shredded mozzarella cheese

→ Bread

08 - 6 cups day-old bread, cut into 1-inch cubes

→ Seasonings

09 - 1 teaspoon salt
10 - 1/2 teaspoon black pepper
11 - 1/2 teaspoon dried mustard powder
12 - 1/4 teaspoon paprika

→ For Greasing

13 - Butter or nonstick spray

# How-To Steps:

01 - Preheat the oven to 350°F. Grease a 9x13-inch baking dish with butter or nonstick spray.
02 - In a large skillet over medium heat, cook the sausage, breaking it up with a spoon, until browned and cooked through, about 5–7 minutes. Add onion and bell pepper; sauté until softened, 3–4 minutes. Drain excess fat.
03 - Spread the bread cubes evenly in the prepared baking dish. Top with the cooked sausage and vegetables.
04 - In a large bowl, whisk together the eggs, milk, salt, pepper, mustard powder, and paprika until well combined.
05 - Stir in 1 1/2 cups cheddar cheese and all the mozzarella into the egg mixture.
06 - Pour the egg mixture evenly over the bread and sausage in the baking dish. Gently press the bread down so it soaks up the liquid.
07 - Sprinkle remaining cheddar cheese on top of the casserole.
08 - Cover with foil and bake for 30 minutes.
09 - Remove foil and bake another 15 minutes until golden and set in the center.
10 - Let rest for 10 minutes before slicing and serving.

# Expert Suggestions:

01 -
  • You can assemble everything the night before and just pop it in the oven
  • It feeds a crowd without spending your whole morning at the stove
  • The leftovers reheat beautifully for breakfast all week long
02 -
  • The bread needs to be truly stale or day-old, otherwise it will turn into a dense, soggy pudding
  • Letting the casserole rest before cutting is non-negotiable for neat portions
  • Baking straight from the fridge requires about 10 extra minutes
03 -
  • Use whatever bread you have on hand, but avoid super-soft sandwich bread that will disintegrate
  • If the top browns too quickly, tent loosely with foil for the remaining bake time
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