I make this sausage-and-bread breakfast casserole whenever guests are staying over or when we want an easy, crowd-pleasing brunch. It’s a savory strata built from crumbled breakfast sausage, sautéed onion, cubed day-old bread, plenty of eggs and milk, and a blanket of shredded cheddar. It’s forgiving, makes-ahead friendly, and reheats beautifully — which is why I reach for it on holidays and lazy Sunday mornings alike. For another make-ahead spin, I sometimes refer to a favorite twist on casseroles like a crack breakfast casserole when I want something extra creamy.
Why you’ll love this dish
This casserole balances convenience and comfort. You can brown the sausage and assemble the night before, then bake in the morning — a huge time-saver when feeding a crowd. It’s also budget-friendly (basic pantry bread + eggs + cheese), customizable to picky eaters, and sturdy enough to transport to potlucks.
“Perfect for holiday mornings — rich without being fussy, and everyone always asks for seconds.”
It’s ideal for weekend brunches, holiday breakfasts, overnight guests, or a make-ahead workweek breakfast. If you like hearty, family-style dishes, this is a great one to have in rotation; it sits in the middle of diner-style comfort and simple home cooking, similar in spirit to other family casseroles like an Amish-style country casserole.
How this recipe comes together
Step-by-step overview before you dive into ingredients:
- Brown and crumble the sausage with diced onion so the filling is flavorful from the start.
- Cube day-old bread so it soaks the custard without turning mushy.
- Whisk eggs, milk, salt, and pepper into a custard that binds everything.
- Layer sausage, bread, and cheese in a baking dish, pour over the custard, and let it rest (or refrigerate overnight) before baking.
If you want a quicker, slightly different format for handheld breakfasts, consider recipes like an air-fryer breakfast burrito approach for mornings when you’re short on oven time.
What you’ll need
- 1 pound breakfast sausage (pork or turkey), crumbled and cooked — swap turkey for a leaner option or use a spicy sausage for heat.
- 1 cup onion, diced — yellow or sweet onion both work.
- 10 large eggs, room temperature — letting eggs warm slightly gives a smoother custard.
- 2 cups whole milk — for creamier texture; use half-and-half for extra richness or a dairy-free milk plus 2 extra egg yolks for a substitute.
- 1/2 teaspoon salt
- 1/4 teaspoon black pepper
- 6 cups day-old bread, cubed — sturdy white, French, sourdough, or a country loaf; avoid very soft sandwich bread unless it’s slightly stale.
- 1 1/2 cups cheddar cheese, shredded — sharp cheddar for more flavor; mix in Monterey Jack for milder, gooey melt.
Tip: stale bread soaks up the custard without becoming gummy. If your bread is fresh, lightly toast cubes for 10 minutes to dry them out.
Step-by-step instructions
Sausage Mixture
- Preheat the oven to 350°F (175°C). Lightly grease a 9×13-inch baking dish.
- In a skillet over medium heat, cook 1 pound crumbled breakfast sausage until no pink remains. Use a spatula to break it into small pieces.
- Add 1 cup diced onion to the sausage and cook 3–4 minutes until the onion is soft and translucent. Drain excess fat if needed and spread the mixture in the bottom of the prepared dish.
Custard
4. In a large bowl, whisk together 10 large eggs and 2 cups whole milk until smooth.
5. Season the custard with 1/2 teaspoon salt and 1/4 teaspoon black pepper. Taste and adjust lightly — remember the cheese and sausage add salt.
Assembly
6. Scatter 6 cups cubed day-old bread evenly over the sausage and onion in the dish.
7. Sprinkle 1 1/2 cups shredded cheddar cheese on top of the bread.
8. Pour the egg-and-milk mixture slowly over the layered bread, pressing gently so the bread soaks up the custard.
9. Let the casserole sit 15–30 minutes at room temperature to absorb the custard, or cover and refrigerate overnight for a true make-ahead breakfast.
10. Bake uncovered at 350°F (175°C) for 45–55 minutes, or until the top is golden and the center is set (a knife inserted near the center should come out mostly clean).
11. Let rest 10 minutes before slicing — resting firms the custard and makes serving neater.
Best ways to enjoy it
- Slice and serve with a crisp green salad and fresh fruit for a balanced brunch plate.
- Offer condiments at the table: hot sauce, ketchup, or a tangy tomato chutney complement the richness.
- For a brunch board, place small wedges alongside roasted potatoes and a yogurt parfait.
- Pair the savory casserole with a light baked fruit dish like baked blueberry cottage cheese bowls to add a sweet contrast.
Storage and reheating tips
- Refrigeration: Cool the casserole to room temperature, cover tightly, and refrigerate for up to 3–4 days.
- Reheating: Reheat individual slices in a 350°F oven for 10–15 minutes or in the microwave for 1–2 minutes. Cover with foil when reheating in the oven to prevent over-browning.
- Freezing: Slice into portions, wrap each piece tightly in plastic wrap and foil, and freeze up to 2 months. Thaw overnight in the refrigerator before reheating.
- Food safety: Because this dish contains eggs and dairy, don’t leave it at room temperature for more than 2 hours. Always reheat to at least 165°F (74°C) for safe consumption.
Helpful cooking tips
- Use room-temperature eggs: they emulsify better with milk, giving a silkier custard.
- Don’t over-soak: If left too long, especially with very soft bread, the casserole can become overly dense. Aim for 15–30 minutes at room temp or overnight in the fridge if you want a firmer set.
- Cheese distribution: Mix a small handful of cheddar into the sausage layer for melty pockets inside, and reserve most for a golden top.
- Shortcut: For even faster prep, use pre-cubed frozen bread cubes that have been thawed and dried slightly in the oven.
- If you’re short on time but want a similar comfort-casserole vibe, try a simple ground-beef-and-potato bake like this 5-ingredient hamburger potato casserole for dinner instead.
Creative twists
- Veg-forward: Add sautéed bell peppers, mushrooms, or spinach to the sausage mixture for extra veggies.
- Potatoes: Substitute 4 cups of shredded hash browns for half the bread to make a hash-brown-style strata.
- Mediterranean: Swap sausage for crumbled feta and spinach, use oregano, and top with diced tomatoes.
- Dairy-free: Use a dairy-free milk that is higher in fat (like a soy or oat creamer) and a dairy-free cheese; add 1–2 extra egg yolks to improve texture.
- Heat: Stir in 1/2 teaspoon red pepper flakes or use chorizo sausage for a spicy variation.
Common questions
Q: Can I assemble this casserole the night before?
A: Yes — assemble, cover tightly, and refrigerate overnight. Let it sit at room temperature 20–30 minutes before baking, and expect to add a few extra minutes to baking time.
Q: What bread works best?
A: Sturdy, day-old bread like french, sourdough, or country loaf works best because it soaks the custard without turning to mush. If your bread is fresh, toast cubes lightly for 8–10 minutes.
Q: Can I make this vegetarian?
A: Replace sausage with a sautéed vegetable medley (mushrooms, peppers, and smoky paprika) or use a plant-based sausage alternative. Adjust seasoning since plant proteins can be less salty.
Q: How do I know when it’s done?
A: The top should be golden and slightly puffed. A knife or toothpick inserted into the center should come out with only a few moist crumbs — not liquid custard.
Q: Can I add more cheese or meat?
A: Yes, within reason. Extra cheese increases richness and salt, so balance by reducing added salt. More meat will make the casserole denser; spread it evenly to keep texture consistent.
Conclusion
If you like another classic take on a make-ahead breakfast casserole, this version shares the same comforting, crowd-pleasing appeal as recipes like Breakfast Casserole from Tastes Better From Scratch. For a simple, reliable method with notes on timing and assembly you might compare to Easy Breakfast Casserole Recipe at Sally’s Baking Addiction. And if you prefer a potato-forward breakfast casserole, check out this hearty option on Allrecipes for hash brown and egg casserole.
Sausage and Bread Breakfast Casserole
Ingredients
Sausage Mixture
- 1 pound breakfast sausage, crumbled and cooked Pork or turkey, spicy option available.
- 1 cup onion, diced Yellow or sweet onion works well.
Custard
- 10 large eggs Room temperature eggs give a smoother custard.
- 2 cups whole milk Use half-and-half for extra richness or substitute with dairy-free milk plus 2 extra egg yolks.
- 1/2 teaspoon salt Adjust to taste.
- 1/4 teaspoon black pepper
Casserole Assembly
- 6 cups day-old bread, cubed Use sturdy white, French, sourdough, or country loaf.
- 1 1/2 cups cheddar cheese, shredded Sharp cheddar recommended; mix in Monterey Jack for a milder flavor.
Instructions
Sausage Mixture
- Preheat the oven to 350°F (175°C). Lightly grease a 9x13-inch baking dish.
- In a skillet over medium heat, cook the crumbled breakfast sausage until no pink remains.
- Add the diced onion to the sausage and cook for 3–4 minutes until soft and translucent.
- Drain excess fat if needed and spread the mixture in the bottom of the prepared dish.
Custard
- In a large bowl, whisk together the eggs and whole milk until smooth.
- Season the custard with salt and pepper to taste.
Assembly
- Scatter the cubed day-old bread evenly over the sausage mixture in the dish.
- Sprinkle the shredded cheddar cheese on top of the bread.
- Pour the egg-and-milk mixture slowly over the layered bread, gently pressing down to soak the bread.
- Let the casserole sit for 15–30 minutes at room temperature or refrigerate overnight.
- Bake uncovered at 350°F (175°C) for 45–55 minutes, or until the top is golden and the center is set.
- Let rest for 10 minutes before slicing.
