Cheesy Sausage Breakfast Casserole
This sausage breakfast casserole is what I make when I want a hot, hearty breakfast without standing at the stove. Eggs, sausage, and plenty of cheese bake into one cozy dish.
Assemble it the night before and just pop it in the oven in the morning.
Prep: 15 min | Cook: 45 min | Total: 60 min | Serves: 8
Why You’ll Love This Recipe
- Make-ahead friendly, perfect for holidays and brunch.
- Cheesy, savory, and filling.
- Feeds a crowd from one pan.

Cheesy Sausage Breakfast Casserole
Ingredients
Method
- Cook the sausage and onion in a skillet over medium heat until browned. Drain.
- Grease a 9x13-inch baking dish and spread the cubed bread evenly in it.
- Top with the cooked sausage and shredded cheddar.
- Whisk together the eggs, milk, salt, and pepper, then pour evenly over the top.
- Cover and refrigerate at least 2 hours or overnight.
- Bake at 350°F (175°C) for 40-45 minutes, until set and golden. Top with chives and serve.
Tips for the Best Results
- Let it chill so the bread soaks up the custard.
- Use day-old bread for the best texture.
- Let it rest 10 minutes before slicing.
Variations
- Swap sausage for bacon or ham.
- Add diced bell peppers or spinach.
- Use a mix of cheddar and pepper jack.
Storage
Refrigerate for up to 4 days. Reheat individual portions in the microwave or oven.
