Egg and sausage casserole –There’s something truly comforting about a warm, hearty breakfast casserole. Today, I’m excited to share a delightful recipe for an Overnight Sausage Egg Casserole that you can prepare in advance and enjoy on a busy morning. This dish is not only delicious but also incredibly easy to make, making it perfect for family gatherings or a weekend brunch. Let’s dive into the details!
Overnight Sausage Egg Casserole
This casserole is loaded with savory sausage, tender bread, and creamy eggs—perfectly seasoned for a morning pick-me-up. Plus, you can make it the night before and simply bake it in the morning while you sip your coffee. What’s not to love?

Ingredients
- 1 pound breakfast sausage
- 6 large eggs
- 2 cups milk
- 1 teaspoon mustard powder
- 1/2 teaspoon garlic powder
- 1/2 teaspoon onion powder
- 8 slices of bread, cubed (preferably day-old or toasted)
- 2 cups shredded cheese (cheddar or your choice)
- Salt and pepper to taste
- Chopped fresh parsley for garnish (optional)
Instructions
- In a large skillet, cook the breakfast sausage over medium heat until browned and crumbly. Drain the excess fat and set aside to cool slightly.
- In a large bowl, whisk together the eggs, milk, mustard powder, garlic powder, onion powder, salt, and pepper.
- Add the cubed bread and cooked sausage to the egg mixture, folding gently to incorporate. Make sure all the bread is soaked in the egg mixture.
- Grease a 9×13 inch baking dish and pour the mixture into it, spreading it out evenly.
- Sprinkle the shredded cheese on top, covering the entire surface.
- Cover the dish with plastic wrap and refrigerate overnight, or for at least 8 hours. This allows the flavors to meld together and the bread to absorb the egg mixture.
- When ready to bake, preheat your oven to 350°F (175°C). Remove the casserole from the refrigerator and let it sit for about 30 minutes to take the chill off.
- Bake the casserole, uncovered, for 45-55 minutes, or until it’s puffed and golden brown on top. A knife inserted in the center should come out clean.
- Once baked, let it cool for a few minutes before slicing into squares.
- Garnish with chopped fresh parsley if desired and serve warm!
Enjoy this delicious Overnight Sausage Egg Casserole as a satisfying start to your day, and feel free to experiment with your favorite mix-ins, like vegetables or different types of cheese. This dish is sure to become a recurring favorite in your home!