This sausage, egg, and cheese casserole made with Bisquick is easy enough for a regular weekend morning, but special enough for a holiday breakfast.

This Bisquick Breakfast Casserole is an easy make-ahead breakfast that’s hearty, cheesy, and perfect for feeding a crowd. It bakes up fluffy and filling with simple ingredients.

Slice of easy Bisquick breakfast casserole served on a white plate with fresh fruit.

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There’s something about a hearty breakfast casserole that just makes mornings feel both special and easy, especially when you’re feeding a house full of people.

This Bisquick Breakfast Casserole is one of those simple recipes that works for holiday mornings, lazy weekends, or anytime you want a filling breakfast without a lot of fuss.

The combination of sausage, eggs, and melty cheese baked together into one dish is hard to beat!

One of the best things about this breakfast casserole using Bisquick is how easy it is to pull together with simple ingredients.

The Bisquick creates a soft, fluffy texture that holds everything together without extra work, making this an easy recipe to keep in your back pocket for busy weekends and family gatherings.

More Bisquick Breakfast Recipes:

overhead view of a 9x13" baking dish of freshly baked Bisquick casserole with sausage.

Sausage, Egg, and Cheese Breakfast Casserole

A good sausage, egg, and cheese casserole is one of those recipes that feels comforting without being complicated.

The sausage adds plenty of savory flavor, while the eggs and cheese make it rich and filling enough to keep everyone satisfied for hours.

Since everything bakes together in one dish, cleanup is a breeze, which is always a bonus after hosting family or friends overnight.

I especially love this recipe during the summer or holiday breaks when everyone seems to wake up on a different schedule.

Instead of standing in the kitchen cooking breakfast one plate at a time, you can bake the casserole ahead of time, slice it up, and store it in the fridge. Everyone can warm up a piece whenever they finally wander into the kitchen hungry.

This casserole is also easy to customize depending on what you have on hand. You can add sautéed onions and peppers, swap in spicy sausage, or experiment with different cheeses.

It reheats beautifully, too! Just warm up a slice in the microwave for a quick breakfast that tastes just as good the next day.

Slice of cheesy sausage egg breakfast casserole on a white plate, served with fresh fruit. The baking dish of casserole is in the background.

How to Make Breakfast Casserole Using Bisquick

It’s really easy to make this hearty breakfast.

Ingredients You’ll Need

Breakfast Sausage
Milk
Eggs
Bisquick Baking Mix
Maple Syrup
Salt and Pepper
Shredded Mozzarella Cheese
Shredded Cheddar Cheese

A spatula lifts a slice of Bisquick sausage egg casserole from the baking dish.

How to Make It:

Find the full printable recipe available below

Brown the sausage. First, you’ll brown the ground breakfast sausage, breaking it apart as it cooks.

Transfer the sausage to a plate lined with paper towels, allowing it to drain for a few minutes, then add the sausage to the bottom of the 9×13″ baking dish.

two photos; one shows a pound of raw sausage in a skillet; the other shows the sausage after it's been browned and drained.

Prepare the Bisquick batter. Then, you’ll whisk together the milk, eggs, Bisquick mix, maple syrup, salt, and pepper.

Then you’ll add the cooked sausage and mozzarella cheese to the egg mixture, stirring to combine.

two photos; one shows milk, eggs, Bisquick, maple syrup, salt, and pepper in a mixing bowl; the other shows mozzarella cheese and cooked sausage added to the egg mixture.

Layer and bake. Pour the mixture into the prepared pan and top with the cheddar cheese. Bake in preheated oven for 25-30 minutes, or until cooked through.

Remove from oven and let cool for about 15 minutes before slicing and serving.

two photos; one shows shredded cheese sprinkled over the egg mixture in a baking dish; the other shows the breakfast casserole after being baked.

Notes and Adaptations:

This is one of those recipes that’s easy to customize. I use mild pork breakfast sausage, but you could use a hot sausage if you like a little extra spice.
Feel free to saute some veggies (such as onions and peppers) with the sausage if you want to add them to the casserole.
I recommend shredding the cheese yourself if possible, as it melts much better. But if you’re short on time, a bag of shredded cheese will work!
Leftover casserole should be covered tightly and stored in the refrigerator for up to 3 days.
To reheat, microwave individual slices for 30-45 seconds at a time or until desired temperature is reached.
To freeze, place completely cooled leftovers in an airtight freezer-safe container and freeze for up to 3 months. Defrost in the refrigerator overnight before reheating.
Make it the night before! Assemble the casserole, cover it with foil, and refrigerate it for up to 12 hours before baking.