Go Back
Best Overnight Sausage and Egg Casserole

Best Overnight Sausage and Egg Casserole

This make-ahead breakfast casserole is the perfect solution for a stress-free holiday morning or a simple, hearty meal for guests. All the preparation is done the night before, so you can simply bake it in the morning. The dish features savory sausage, sharp cheddar, and fluffy eggs soaked into soft bread cubes for a comforting and classic breakfast bake.
Print Recipe Pin Recipe
Prep Time 15 minutes
Cook Time 45 minutes
Total Time 1 hour
Servings: 4 servings
Calories: 350
Ingredients Equipment Method Notes

Ingredients
  

Ingredients
  • 6 slices of bread, cubed (preferably slightly stale)
  • 1 pound breakfast sausage, cooked and crumbled
  • 2 cups sharp cheddar cheese, grated
  • 8 large eggs
  • 2 cups whole milk
  • 1 teaspoon ground mustard
  • 1 teaspoon salt
  • Freshly ground black pepper to taste

Equipment

  • 9x13 inch baking dish
  • Large bowl
  • Whisk
  • Spatula

Method
 

Instructions
  1. Grease a 9x13 inch baking dish. Spread the cubed bread evenly across the bottom of the dish.
  2. Sprinkle the cooked, crumbled sausage over the bread, followed by the grated cheddar cheese. Try to distribute everything as evenly as possible.
  3. In a large bowl, whisk together the eggs, milk, ground mustard, salt, and pepper until well combined and slightly frothy.
  4. Carefully and slowly pour the egg mixture over the layers in the baking dish. Gently press down on the bread with a spatula to help it absorb the liquid.
  5. Cover the dish tightly with plastic wrap or foil and refrigerate for at least 8 hours, or overnight.
  6. When ready to bake, preheat your oven to 350°F (175°C). Remove the dish from the refrigerator and let it sit on the counter for about 20-30 minutes to take the chill off.
  7. Bake uncovered for 45 to 55 minutes, or until the center is set (a knife inserted comes out clean) and the top is golden brown and bubbly.
  8. Let the casserole rest for 10 minutes before slicing and serving. This helps it set and makes for cleaner slices.

Notes

For the best texture, use stale or lightly toasted bread to prevent a soggy bottom. Do not skip the 10-minute rest time after baking, as it allows the casserole to set for cleaner slices. You can substitute sourdough or brioche for bread, bacon or ham for sausage, and cheeses like Gruyère or pepper jack. Sautéed vegetables can also be added for extra flavor.