Sausage Egg Cheese Bake is my go-to savory breakfast casserole when I want something warm, filling, and not fussy. It’s got that classic sausage-and-egg comfort, plus plenty of melty cheese to tie it all together.
What I like about this version is the soft, custardy middle with a golden top, and the bread cubes that keep it hearty without turning it into a brick. The Dijon doesn’t make it taste like mustard, but it gives the eggs a more “finished” flavor that I really prefer.
This is especially good for weekend brunch, holiday mornings, or any time you need a make-ahead breakfast that slices cleanly. I usually serve it with something fresh on the side and let people add hot sauce at the table.
Why You’ll Love This Recipe
Easy to Make Ahead: You can assemble it the night before and bake it in the morning, which is exactly what I want for busy weekends.
Hearty and Filling: Between the sausage, eggs, and cheese, one square actually keeps you full.
Great Texture: Day-old bread gives you that tender, custardy center without turning the whole pan soggy.
Simple Ingredients: It’s all familiar grocery-store stuff, and the swaps are easy if you want to change the cheese or add vegetables.
Feeds a Group: This is a solid 9×13 breakfast that slices neatly and is easy to serve buffet-style.
Ingredients You’ll Need
Casserole
- Breakfast sausage: I like the regular breakfast sausage here (pork, turkey, whatever you buy). Just make sure it’s well browned so it doesn’t taste steamed in the casserole.
- Eggs: Large eggs are standard. This is the structure of the whole bake, so I wouldn’t swap in egg whites only unless you’re okay with a drier result.
- Milk: Whole milk is my preference for a softer, richer set, but 2% works too. I don’t usually use skim here.
- Cheddar cheese: Sharp cheddar is what I reach for most. Monterey Jack or pepper jack are great if you want it a little creamier or a little spicier.
- Day-old bread cubes: Slightly stale bread is best because it holds up and soaks in the egg mixture evenly. Any sturdy sandwich bread works, or use a crustier loaf if that’s what you have.
- Dijon mustard: Don’t skip it if you can help it. It adds a little tang and makes the eggs taste less flat.
- Kosher salt: The sausage brings salt too, so I keep this pretty straightforward and don’t overdo it.
- Black pepper: Freshly ground is nice, but regular pepper is totally fine.
- Garlic powder: This is an easy way to add a little savory background without making the casserole taste strongly like garlic.
- Butter: I use butter to grease the dish because it adds flavor and helps the edges brown a bit.
Optional
- Yellow onion: Dice it small so it softens as it bakes. If you want a milder onion flavor, green onions work too.
- Bell pepper: Any color is fine. I like red for a little sweetness, but green is the most classic with sausage.
- Parsley: This is just to freshen it up right before serving. Chives are also good here.
- Hot sauce: I like letting everyone add their own. Something vinegary works especially well with the richness.
Recipe Instructions
- Preheat the oven: Heat the oven to 350°F and grease a 9×13-inch baking dish with butter.
- Cook the sausage: Cook the sausage in a skillet over medium heat, breaking it up, until browned and cooked through. Drain off excess fat.
- Add the bread: Spread the bread cubes evenly in the greased baking dish.
- Add sausage and cheese: Sprinkle the cooked sausage over the bread, then top with most of the shredded cheese (save a little for the top).
- Whisk the eggs: In a large bowl, whisk the eggs, milk, Dijon mustard, salt, pepper, and garlic powder until fully combined.
- Pour the mixture: Pour the egg mixture evenly over the casserole. Press down gently so the bread is moistened all over.
- Rest: Let the casserole sit for about 10 minutes, then sprinkle the remaining cheese on top.
- Bake: Bake for 35 to 45 minutes, until the center is set and the top is lightly browned.
- Rest again: Let it rest for about 10 minutes before slicing and serving.
Some of my tips!
This is the part that really makes a difference. If you only read one section, make it this one because this is where I share the little trick that helps the recipe turn out so well.
Recipe Tips & Tricks
Use truly day-old bread. Bread that’s a little dry soaks up the egg mixture better. Fresh, soft bread can turn a little gummy in the middle.
Drain the sausage well. If there’s a lot of grease left behind, the casserole can feel heavy and the bottom can get oily. I usually spoon it onto a plate lined with paper towels.
Keep add-ins to about a cup. Onions and peppers are great, but too many watery vegetables can make the bake soft and wet. If you’re adding cooked veggies, let them cool and drain first.
Press the bread down gently. You’re not mashing it—just making sure the top layer gets a chance to soak. Dry spots on top tend to bake up tough.
Don’t guess on doneness. The center should look set (not sloshy) when you nudge the pan. If the top browns early, just let it keep baking until the middle is done.
Make some touches!
There are plenty of easy ways to serve this depending on the occasion. Keep it simple, or add a few small touches to make it feel a little more special.
Serving Suggestions
- Hot sauce and herbs: Set out hot sauce, chopped parsley, or chives so everyone can finish their slice how they like. A little extra black pepper on top is good too.
- Fresh fruit: A bowl of berries, melon, or citrus is an easy side that doesn’t take more cooking. It keeps the plate from feeling too heavy.
- Potatoes: Hash browns or home fries are great if you’re serving a bigger brunch. If I’m doing potatoes too, I keep the casserole portions a bit smaller.
- Something green: A simple arugula salad with lemon and olive oil works well here. Even sliced tomatoes with a little salt is nice.
- Drinks: Coffee is the obvious choice, but this is also good with orange juice or an iced tea. I usually keep it simple.
Save it for later
This section covers how to store leftovers and what parts of the recipe you can prepare ahead of time.
Storage and Make Ahead
Store leftovers covered in the fridge for up to 4 days. This reheats well in the microwave for quick breakfasts, or you can warm slices in the oven if you want the top to crisp a bit again.
You can also make this recipe ahead and refrigerate it before baking. Assemble the casserole, cover it tightly, and stash it in the fridge for up to 12 hours.
If you bake it straight from the fridge, plan on adding 5 to 10 extra minutes to the baking time. I still go by the center being set more than the clock.
If you want it to last longer, freeze individual portions and reheat as needed. Thaw in the fridge overnight for the most even reheating, but the microwave works in a pinch.
A few quick answers
This section covers a few extra details that may help before you head to the recipe card.
Recipe FAQs
Can I use fresh bread instead of day-old?
You can, but it’s more likely to turn soft and a little gummy. If your bread is very fresh, I’d cube it and let it sit out for an hour or two to dry a bit before using.
How do I make this gluten free?
The easiest option is swapping the bread for cubed cooked hash browns, just like the note suggests. Keep an eye on the bake time since potatoes can cook a little differently depending on how dry they are.
What other cheese works besides cheddar?
Monterey Jack melts really nicely and keeps the flavor mild. Pepper jack is great if you want some heat, especially with sausage.
How do I know when the casserole is done?
The center should look set and not jiggle like raw eggs when you gently shake the pan. If you’re unsure, a knife inserted near the center should come out clean, and the top should be lightly browned.
Can I add vegetables without making it watery?
Yes—just keep the total add-ins around 1 cup and dice them small. If you’re adding mushrooms, spinach, or other high-water veggies, cook them first and let the moisture cook off before adding them.
You might also like
Before you go, take a look at a few other recipes below the recipe card. They use similar ingredients in a different way and are worth saving too.
MORE DINNER RECIPES TO TRY
Sausage Egg Cheese Bake
INGREDIENTS
Casserole
- 1 lb breakfast sausage
- 8 large eggs
- 2 cups milk
- 2 cups shredded cheddar cheese
- 6 cups day old bread cubes
- 1 tbsp Dijon mustard
- 1 tsp kosher salt
- ½ tsp black pepper
- ½ tsp garlic powder
- 2 tbsp butter for greasing.
Optional
- ½ cup diced yellow onion
- ½ cup diced bell pepper
- 2 tbsp chopped parsley for garnish
- hot sauce to taste.
INSTRUCTIONS
Prep
- heat oven to 350 F and grease a 9x13 inch baking dish with butter
- cook sausage in a skillet over medium heat until browned and cooked through then drain excess fat
- spread bread cubes evenly in the baking dish and top with cooked sausage and 1.5 cups of the cheese.
Bake
- whisk eggs milk Dijon salt pepper and garlic powder until fully combined then pour evenly over the casserole and press gently so bread is moistened
- rest 10 minutes then sprinkle remaining 0.5 cup cheese on top and bake until center is set and top is lightly browned 35 to 45 minutes
- rest 10 minutes before slicing and serving.
