Overnight Sausage Breakfast Casserole
A creamy, flavorful, and hearty breakfast casserole made with sausage, eggs, and cheese, perfect for busy mornings.
Ingredients
Main Ingredients
- 1 pound breakfast sausage, crumbled
- 8 large eggs
- 2 cups milk
- 1 teaspoon dried mustard
- 1 teaspoon salt
- 1/2 teaspoon black pepper
- 6 slices bread, cut into cubes
- 2 cups shredded cheese (cheddar or your favorite)
- Optional: chopped veggies like bell peppers, onions, or spinach Customize to your liking
Instructions
Preparation
- In a skillet over medium heat, cook the crumbled sausage until browned and fully cooked. Drain excess fat, if necessary, and set aside.
- In a large bowl, whisk together the eggs, milk, mustard, salt, and pepper until well combined.
- In a greased 9x13 inch baking dish, layer the bread cubes, followed by the cooked sausage and your chosen vegetables if using.
- Pour the egg mixture over everything, ensuring the bread is fully coated.
- Sprinkle the shredded cheese evenly over the top of the casserole.
- Cover the dish with foil or plastic wrap and refrigerate overnight to allow the flavors to meld and the bread to soak up the egg mixture.
- The next morning, preheat your oven to 350°F (175°C). Remove the cover and bake the casserole for about 45 minutes or until the center is set and the top is golden.
- Let it cool slightly, slice into squares, and serve warm.
Notes
If you have leftovers, store in an airtight container in the refrigerator for up to 3-4 days. Reheat individual portions in the microwave or bake in the oven at 350°F (175°C) until warmed through. This casserole is also great for meal prep; simply freeze individual portions for up to two months.