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–+ servings
Lucy Lucy

Make-Ahead Sausage and Egg Breakfast

This Overnight Sausage Egg Casserole is a hearty, cheesy, and savory breakfast dish perfect for busy mornings or special gatherings. With minimal prep the night before, you can wake up to an easy, ready-to-bake casserole that’s sure to delight everyone at the table.
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Prep Time 15 minutes
Cook Time 1 hour
Total Time 1 hour 15 minutes
Servings: 8 servings
Course: Breakfast
Cuisine: American
Ingredients Method Notes

Ingredients
  

  • 1 package pork sausage 16 oz
  • 4 cups day-old bread cubed
  • 2 cups shredded cheddar cheese
  • 10 large eggs slightly beaten
  • 4 cups milk
  • 1 teaspoon dry mustard
  • 1 teaspoon salt
  • ¼ teaspoon onion powder
  • ¼ teaspoon pepper

Method
 

Cook the Sausage:
  1. In a large skillet over medium heat, cook the pork sausage until browned and fully cooked, breaking it into crumbles with a spatula.
  2. Drain excess grease and set the sausage aside.
Prepare the Baking Dish:
  1. Grease a 9×13-inch baking dish with butter or non-stick spray.
  2. Spread the cubed bread evenly across the bottom of the dish.
  3. Sprinkle the shredded cheddar cheese over the bread.
Mix the Egg Mixture:
  1. In a medium bowl, whisk together the eggs, milk, dry mustard, salt, onion powder, and pepper until fully combined.
Assemble the Casserole:
  1. Pour the egg mixture evenly over the bread and cheese.
  2. Top with the cooked sausage, spreading it evenly over the surface.
  3. Cover the dish tightly with plastic wrap or foil and refrigerate overnight.
Bake the Casserole:
  1. Preheat the oven to 325°F.
  2. Remove the casserole from the refrigerator and discard the plastic wrap or foil.
  3. Bake uncovered for 1 hour, or until the center is set and no longer jiggly. If the top starts to brown too quickly, tent the casserole with foil.
Rest and Serve:
  1. Let the casserole rest for 10 minutes before slicing.
  2. Garnish with chopped parsley or chives, if desired, and serve warm.

Notes

  • Make-Ahead Tips: Assemble the casserole up to 24 hours in advance and bake it fresh in the morning.
  • Substitutions: Use sourdough, French bread, or whole-grain bread instead of regular bread for added flavor.
  • Add-Ins: Enhance the casserole with diced bell peppers, mushrooms, or spinach for extra nutrients.
  • Cheese Options: Substitute cheddar with Swiss, Monterey Jack, or a blend for a different flavor profile.
  • Storage: Refrigerate leftovers in an airtight container for up to 3 days. Reheat in the oven or microwave before serving.

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