Why Make This Recipe
Quick Overnight Sausage and Egg Casserole is a perfect dish for busy mornings. It allows you to prepare everything the night before and simply bake it in the morning. This recipe is not only easy to make but is also hearty and delicious, providing a great start to your day.
How to Make Quick Overnight Sausage and Egg Casserole
Ingredients:
- 8 large eggs
- 2 cups milk
- 1 pound breakfast sausage
- 4 cups cubed bread
- 2 cups shredded cheddar cheese
- 1 teaspoon salt
- 1/2 teaspoon black pepper
- 1 teaspoon mustard powder (optional)
Directions:
- In a skillet over medium heat, cook the sausage until browned and crumbled. Drain excess fat.
- In a large bowl, whisk together eggs, milk, salt, pepper, and mustard powder.
- Grease a 9×13 inch baking dish and layer the cubed bread, cooked sausage, and half of the cheese.
- Pour the egg mixture over the layers and top with the remaining cheese.
- Cover and refrigerate overnight.
- Preheat the oven to 350°F (175°C).
- Bake uncovered for 45-50 minutes or until the center is set and the top is golden.
- Let it cool for a few minutes before slicing and serving.

How to Serve Quick Overnight Sausage and Egg Casserole
This casserole is best served warm. You can slice it into squares and serve it with a side of fresh fruit or a green salad. It also pairs well with hot sauce or salsa for those who like a little kick.
How to Store Quick Overnight Sausage and Egg Casserole
To store leftovers, let the casserole cool completely, then cover it tightly with plastic wrap or aluminum foil. You can keep it in the refrigerator for up to 3 days. For longer storage, it can be frozen in an airtight container for up to 3 months. Simply reheat in the oven or microwave when ready to eat.
Tips to Make Quick Overnight Sausage and Egg Casserole
- Use day-old bread: Slightly stale bread works best as it absorbs the egg mixture without becoming too mushy.
- Add veggies: Incorporate chopped bell peppers, onions, or spinach to add more flavor and nutrition.
- Make it spicy: For a spicy kick, you can add diced jalapeños or use spicy sausage.
Variation
You can easily customize this casserole by changing the type of cheese or sausage. Try using ham, turkey sausage, or even a mix of different cheeses for a new flavor.
FAQs
Can I make this casserole without sausage?
Yes, you can substitute the sausage with cooked and crumbled bacon or leave it out altogether for a vegetarian version.
Can I prepare it the same day instead of overnight?
You can prepare it the same day, but letting it sit overnight allows the flavors to meld and the bread to soak properly.
How do I know when the casserole is done?
The casserole is done when the center is set (not jiggly) and the top is golden brown. You can insert a knife into the center to check if it comes out clean.

Quick Overnight Sausage and Egg Casserole
Ingredients
Method
- In a skillet over medium heat, cook the sausage until browned and crumbled. Drain excess fat.
- In a large bowl, whisk together eggs, milk, salt, pepper, and mustard powder.
- Grease a 9x13 inch baking dish and layer the cubed bread, cooked sausage, and half of the cheese.
- Pour the egg mixture over the layers and top with the remaining cheese.
- Cover and refrigerate overnight.
- Preheat the oven to 350°F (175°C).
- Bake uncovered for 45-50 minutes or until the center is set and the top is golden.
- Let it cool for a few minutes before slicing and serving.