Fluffy eggs, savory sausage, melty cheese, and golden bread—all baked into one hearty, comforting dish! This easy make-ahead casserole is perfect for holiday brunches, busy mornings, or cozy dinners. Just assemble the night before, pop it in the oven, and wake up to a hot, delicious meal with zero morning stress.
Why You’ll Love This Sausage Casserole
✅ Prep ahead – Assemble the night before, bake in the morning!
✅ Feeds a crowd – Great for holidays, potlucks, or meal prep.
✅ Customizable – Add veggies, swap meats, or make it spicy.
✅ Freezer-friendly – Bake now, reheat later!
Make-Ahead Sausage Casserole Recipe
Ingredients
1 lb breakfast sausage (or Italian sausage), cooked & crumbled
6 cups cubed bread (French, sourdough, or brioche)
2 cups shredded cheddar cheese
8 large eggs
2 cups milk (or half-and-half for extra richness)
1 tsp mustard powder
1 tsp salt
½ tsp black pepper
½ tsp garlic powder
Optional add-ins: Diced bell peppers, spinach, mushrooms, or jalapeños
Step-by-Step Instructions
1. Prep the Base
Grease a 9x13-inch baking dish.
Layer bread cubes, cooked sausage, and cheese (and any veggies).
2. Make the Egg Mixture
Whisk eggs, milk, mustard powder, salt, pepper, and garlic powder.
Pour evenly over the bread mixture.
3. Refrigerate Overnight (or bake now!)
Cover and chill at least 4 hours (or overnight) to let bread soak up the custard.
4. Bake & Serve
Preheat oven to 350°F (175°C).
Bake 45-55 mins, until golden and set in the center.
Let rest 5-10 mins before slicing.
Pro Tips for the Best Casserole
🔥 Extra crispy top? Sprinkle with extra cheese before baking.
🍞 Bread tip? Stale bread absorbs custard better!
🌶 Spicy kick? Use hot sausage or add cayenne pepper.
🧊 Freezer option? Bake, cool, then freeze. Reheat at 350°F (175°C) for 20-30 mins.
Serving Suggestions
🍅 Brunch spread – Serve with fresh fruit, hash browns, or mimosas.
🥗 Dinner side – Pair with a green salad or roasted veggies.
🥑 Tex-Mex twist – Top with salsa, avocado, and sour cream.
Final Thoughts
This Make-Ahead Sausage Casserole is a lifesaver for busy mornings—cheesy, hearty, and always a hit. Will you try it for Christmas morning or meal prep? Let us know in the comments!
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