Sausage and Egg Breakfast Casserole -

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This easy and comforting Sausage and Egg Breakfast Casserole is sweet and savory, and the perfect make-ahead breakfast to serve for a weekend brunch or any special occasion. Ideal to serve to a crowd because even the picky eats I know love it!

kings hawaiian breakfast sausage and egg casserole in a white baking dish

Whether it’s the holidays, we’ve got overnight guests, or it’s a fun weekend with family, I love serving this Sausage and Egg Breakfast Casserole. It’s the sweet and savory breakfast casserole everyone knows, loves, and requests regularly, and because it’s super easy to make-ahead, it’s the ideal dish for stress-free (and delicious!) mornings. It’s comforting and warm, and always a crowdpleaser.

Soft, pillowy King’s Hawaiian rolls are soaked in a rich egg mixture for a light and airy custard-like texture. And the whole thing is filled with savory sausage, fresh eggs, and melty cheese. This Sausage and Egg Breakfast Casserole hits all the right flavor notes, and it’s just as delicious the next day, too. Make it for your next family brunch or special gathering – it’ll be your new tradition in no time.

If you like this easy recipe, try these other breakfast ideas, too. This Slow Cooker Cinnamon Roll Casserole is sweet and indulgent, and this Tater Tot Breakfast Casserole is always a winner.

Why You’ll Love This Recipe

Easily Feeds a Crowd: This hearty breakfast bake is an all-in-one meal and easily feeds a large group or crowd with minimal effort. It’s perfect for holidays, guests, or weekend brunch with friends.
Make-Ahead: This is the ideal overnight breakfast casserole to prep in advance to make your life easier. Prep it the night before, store in the fridge, and bake in the morning.
Customizable: We love this recipe as is, but it’s also the perfect dish to customize and change based on the ingredients you like or what you’ve already got in the fridge. Try using different meats, cheeses, and veggie add-ins.

Ingredients

King’s Hawaiian Sweet Rolls: Pillowy, soft, and slightly sweet, these make the casserole custard-like in texture by soaking up the egg mixture.
Breakfast Sausage: Use your favorite variety.
Red Bell Pepper: For color, texture, and a touch of sweetness. Any color works here.
Cream Cheese: Adds a rich tanginess.
Eggs: The base of the casserole; creates the airy, soufflé texture.
Milk: We like whole milk here for creaminess.
Dry Mustard: Adds warmth and subtle flavor.
Cheddar Cheese: Sharp and savory, grate your own. The pre-shredded stuff doesn’t melt as well.
Green Onions: Aromatic flavor and a nice pop of color to garnish.
Salt and Pepper: Always season generously.

How To Make Sausage and Egg Breakfast Casserole

1. Cube the King’s Hawaiian rolls and add them to your baking dish.

kings hawaiian original sweet rolls cut up in a white baking dish

2. Cook the sausage until browned, then stir in diced red peppers to soften.

A white skillet with breakfast sausage and red bell pepper cooking on the stovetop.

3. Add in the cream cheese so it melts into the sausage mixture.
4. Whisk the egg mixture: eggs, milk, dry mustard, shredded cheddar, green onions, salt, and pepper.

sausage mixture in a white skillet, with egg mixture in a white bowl, and Kings Hawaiian rolls cut into cubes on a plaid linen.

5. Pour the egg mixture over the cubed rolls.

egg mixture poured up on the kings Hawaiian sweet rolls in the white baking dish.

6. Add the sausage mixture to the top and gently stir everything together so the rolls soak up all that flavor.

Breakfast sausage and pepper mixture poured on top of kings Hawaiian rolls

7. Top with more cheese (because obviously).

shredded cheddar cheese on top of the kings hawaiian breakfast casserole with sausage.

8. Bake until golden, puffy, and set. Your kitchen will smell like the coziest holiday morning ever.

baked kings hawaiian breakfast casserole in a white baking dish.

Expert Tips

Avoid Over-baking: Don’t cook the casserole longer than needed. If it’s over-baked, it’ll be dry. Once the middle is set and no longer jiggly, an inserted toothpick or knife comes out clean, and the edges are browned, the casserole is done.
Rest Before Slicing: Let the casserole rest 10 minutes after removing from the oven. This will help it set, and you’ll get nice, clean slices for serving.
Use Whole Milk or Half-and-Half: Thick and creamy, this will give the richest texture.
Cover Loosely: While baking, check in periodically – if it looks like the top is browning too quickly, cover with a loose piece of foil.
Prep Ahead: This is the ideal breakfast casserole to prep the night before for an easy bake the next morning. You can assemble the whole thing ahead of time, start to finish (yes, really!).

Variations

Swap In Different Meats: Sausage is the classic choice, but crispy, smoky bacon or diced ham would also be delicious.
Try Different Cheeses: Pepper Jack, Monterey Jack, Mozzarella or different cheddars are all great melting cheeses that would work nicely.
Add Veggies: Diced and sautéed bell peppers, onions or mushrooms would be a great add-in to bulk up this casserole.
Sweeten It Up: Adds a slight sweetness with a drizzle of maple syrup.

What To Serve With Sausage and Egg Casserole With Bread

While it’s perfectly great to serve on it’s own, it’s also nice to add some delicious sides especially if you are feeding a crowd for a brunch or holiday gathering. Here are some favorites:

Fresh Fruit or Fruit Salad: Simple and fresh.
Crispy Bacon or Breakfast Potatoes: It is breakfast, afterall.
Coffee, Juice, or Mimosas: Cheers to an easy, make-ahead breakfast!
Cobb Salad Board: Impressive and so easy!

Storage

This casserole is just as delicious the next day. Store leftovers in an airtight container in the fridge for up to 3 days. To reheat, warm in the oven at 350°F, covered, until heated through, about 15 minutes.

You can also freeze leftovers for a later date. Store in an airtight container in the freezer for up to 3 months. Thaw in the fridge overnight before you’re ready to serve, then bring to room temperature as you preheat the oven. Bake at 350°F until the casserole is hot and cheese is melty.

Make-Ahead Instructions

Overnight Instructions: To make the casserole the night before to serve the next day, simply assemble the whole thing as usual, then cover tightly and store in the fridge overnight. The next morning, bring it to room temperature for 20-30 minutes before baking, then bake uncovered as instructed. Once the top is golden and puffy, it’s ready.
Covering and Refrigerating: The best way to store the casserole overnight is by covering tightly with a layer of foil or plastic wrap, to keep the moisture in. To ensure extra freshness, we recommend covering with plastic first, followed by a layer of foil.
Adjust Bake Time: If you don’t have time to bring the casserole to room temperature and are baking straight from the fridge, plan on adding an extra 10-15 minutes to your cook time.

kings hawaiian sausage and egg casserole in white baking dish

FAQs

Do I have to use King’s Hawaiian rolls?

You can use any pack of rolls that aren’t separated, but we really recommend King’s Hawaiian for their sweet, rich flavor and fluffy texture. They’re soft, buttery, and give the casserole a sweet and savory flavor.

How do I know when the casserole is done?

When the top is golden and puffy, the center is set and no longer jiggly, the edges are browned and pulling away from the edges and an inserted toothpick comes out clean, that’s when the casserole is ready to serve.

What are other mix-ins to use for this breakfast casserole?

Different types of breakfast meats like bacon or ham would be delicious. And different veggies like bell peppers, onions, broccoli florets, or mushrooms would be nice add-ins, too.

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