This delicious Italian Sausage Breakfast Casserole is loaded with zesty sausage, eggs, cheese, and biscuits. This is a hearty breakfast comfort food casserole that everyone is going to enjoy.

Jump to:
- Why Youโll Love This Breakfast Casserole Recipe with Italian Sausage
- Ingredients
- Variations
- How to Make Breakfast Casserole with Italian Sausage
- Storage Tips
- Serving Suggestions
- Expert Tips
- Recipe FAQs
- Try This Delicious Italian Sausage and Egg Casserole Recipe Today
- More Breakfast Recipes Youโll Love
- Italian Sausage Breakfast Casserole
I’m a firm believer that if you can make a recipe or meal into a casserole, then you should do it. I’ve been living by that philosophy for years, and it’s served me well. I’ve made everything from taco casserole to French toast casserole. You name it, I’ve made it into a casserole. That’s what I’ve done with this recipe. This casserole is everything we love about breakfast all rolled up into one delicious dish that’s so easy to make and so full of flavor.
This sausage breakfast casserole keeps life simple by using canned biscuits and then layers it up with Italian sausage, onion, cheese, eggs, and seasonings. It is literally breakfast in casserole form. Every bite is loaded with spicy sausage, gooey cheese, fluffy biscuits, and more great breakfast flavors that everyone in the family will love. It’s definitely a breakFEAST!
For more easy casseroles for breakfast try my breakfast biscuit casserole or this breakfast casserole with hash browns.
Why You’ll Love This Breakfast Casserole Recipe with Italian Sausage
I mean, what’s not to love? Buttermilk biscuits, sausage, cheese, onions, and spices? It doesn’t get much better.
- So Delicious! This recipe is absolutely full of flavor and loaded with some of the best breakfast ingredients around – all in one recipe.
- Perfect to Make Ahead. It’s great for making the night before and baking fresh in the morning! I love serving this for holidays or when we have overnight guests.
- Easy to Make with Simple Ingredients. Everything you need is easy to find and versatile enough to use ingredients you already have on hand or to make a unique breakfast every time if you want.

Ingredients
It only takes a few simple ingredients to make this delicious casserole. In fact, you might not even have to go to the store. If you do, you’ll find everything you need easily.
- Refrigerated can buttermilk biscuits: This keeps the recipe super easy! I like the buttermilk variety but you can use others if you prefer them or that’s all you can find.
- Hot Italian sausage: We love the spicy hot variety. To keep things a bit less spicy you can choose one that’s milder in flavor.
- Onion: We’re using fresh onion for deeper flavor and a bit of texture. It’s cooked with the sausage to soften it up a bit.
- Sharp cheddar cheese: For plenty of tangy flavor! Feel free to use other cheeses and even mild cheddar if you prefer.
- Large eggs: The star of the show but they also hold the casserole together.
- Milk: Adding milk with the eggs is what helps the casserole cook up light and tender.
- Seasoning: Since the sausage really packs in the flavor all you need are a bit of black pepper and garlic powder to flavor the egg and Italian sausage mixture.
See the recipe card at the end of the page for the full list of ingredients and the quantities of each one.
Variations
In addition to being easy and delicious, this recipe is so easy to play with. It’s so much fun. Seriously. You can make all kinds of little tweaks and changes to it to create any kind of breakfast casserole you like.
- Change up the Sausage. Try your favorite sausage varieties including hot or mild breakfast sausage, turkey sausage, and chicken sausage – it all works.
- Use a Different Meat Altogether. We’ve made this with ham, bacon, or even leftover steak. If you’re using a meat that’s already cooked you can saute the onion with a bit of olive oil to soften it.
- Add More Veggies. Mushrooms, bell peppers, green onions, blanched broccoli, spinach, and even diced green chilies work great!
How to Make Breakfast Casserole with Italian Sausage
Making this breakfast casserole with Italian sausage is just as easy as gathering up the ingredients. It only takes a few simple steps to construct it. After that, it’s just a matter of baking it up!
- Step 1: Prep. To get started, preheat your oven to 350 degrees F and spray an 11×7 baking dish with nonstick cooking spray. Then dice the onions, shred the cheese, and measure out all the ingredients.
- Step 2: Cook Sausage and Onions. Cook the Italian sausage in a large cast iron skillet over medium heat. As it cooks break it up with your spoon. Add the onions and cook until the sausage is no longer pink and the onions are tender. Add a cup of shredded cheese and stir to melt.
- Step 3: Prep the Biscuits. Cut the biscuit dough into quarters and flatten or roll them out. You’ll end up with 40 pieces of flattened dough.
- Step 4: Stuff the Biscuits. Fill each piece of biscuit with a spoonful of the cooked sausage mixture. Pinch the edges of the biscuits together to seal them and roll them into balls. When ready, place the biscuits into the prepared baking dish.
- Step 5: Prepare the Eggs. Add the eggs, milk, pepper, and garlic powder to a bowl and whisk the eggs well. Pour the egg mixture over the biscuits.
- Step 6: Bake. Bake the casserole in the oven for 50 to 60 minutes or until the eggs are completely cooked through. Remove from the oven and top with the remaining cheese. Enjoy!

Storage Tips
- Leftovers: This casserole will keep well in the refrigerator in an airtight container for 3 to 4 days. For longer storage, you can freeze for up to 2 months. Place it in a freezer-safe container and place a layer of plastic wrap directly onto the casserole before closing the lid to further protect it from the air.
- Make Ahead: Put the casserole all together and place it in the fridge. Take it out the next morning and bake it up. It will be perfect.
- Reheat: Return the leftovers to a baking dish and reheat in the oven at 350ยฐ F wrapped with foil.
Serving Suggestions
The better question is what CAN’T you serve with it? This dish pairs incredibly well with all your breakfast favorites. I love combining it with something sweet and it’s perfect for a brunch or breakfast for a crowd to give everyone plenty of options.
Try these homemade cherry pastries or my berry cinnamon rolls for an indulgent breakfast treat. In the fall we love this sweet cranberry walnut bread or some butternut squash muffins.
These pancake sausage bites are perfect for kids or you can serve up some fluffy pancakes or crispy waffles.
We love a side of hash browns, home fries, or you can try these crispy parmesan potatoes or some air fryer diced potatoes.

Expert Tips
- Whisk the eggs. For light and fluffy eggs make sure you briskly whisk the eggs and milk together to introduce more air into the mixture.
- Get creative. This recipe is very forgiving so add veggies, change up the cheese or meat, or anything you want to make it your own!
- Don’t overbake. Make sure to keep an eye on the casserole and remove it as soon as the eggs are done.
Recipe FAQs
The top of the casserole will appear to be set and if you press on the egg mixture in the center of the casserole it will be slightly firm and not liquidy. The casserole will continue to cook slightly after it’s removed from the oven.
Sure you can! A breakfast gravy or some sausage gravy made with more Italian sausage works great! Or you can keep it simple with your favorite salsa.

Try This Delicious Italian Sausage and Egg Casserole Recipe Today
This Breakfast Casserole with Italian Sausage is so easy and so full of flavor, there’s absolutely no reason not to give it a try. In fact, you have every reason to make it as soon as possible! With biscuits, sausage, eggs, and cheese in every bite, this is a hearty breakfast that everyone in the family will love. Try it once, and I guarantee you’ll be making it again and again.
More Breakfast Recipes You’ll Love
And, here is a delicious Cheesy Sausage Hash Brown Casserole from Great Grub, Delicious Treats that you might enjoy too!
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Italian Sausage Breakfast Casserole
Ingredients
- 2 5 count cans refrigerated biscuits
- 1 pound hot Italian sausage
- ยฝ cup onion diced
- 2 cups sharp cheddar cheese shredded and divided
- 12 eggs
- ยผ cup milk
- 1 teaspoon pepper
- 1 teaspoon garlic powder
Instructions
- Preheat the oven to 350ยฐ and spray an 11×7 baking dish with non-stick cooking spray. Set aside.
- In a large cast iron pan, over medium heat, add Italian sausage (with casing removed). Crumble sausage as it cooks and add in diced onions. Cook until sausage is no longer pink and onions are tender. Add 1 cup of shredded cheese and stir until cheese is melted. Remove from heat and set aside.
- Cut biscuits into quarters and flatten/roll out each quarter. (You should end up with 40 pieces of flattened biscuit dough.)
- Fill each piece of biscuit dough with a spoonful of sausage mixture. Pinch edges of the biscuits together to seal and roll each into a ball. Repeat until all biscuits are filled with mixture.
- Place each filled biscuit into the prepared baking dish.
- In a separate bowl, add eggs, milk, pepper, and garlic powder. Whisk well until eggs are completely beaten.
- Pour egg mixture over biscuits
- Place in preheated oven and bake for 50-60 minutes or until eggs are completely cooked through.
- Remove from oven and top with remaining shredded cheese. Serve immediately.
Notes
- Whisk the eggs. For light and fluffy eggs make sure you briskly whisk the eggs and milk together to introduce more air into the mixture.
- Get creative. This recipe is very forgiving so add veggies, change up the cheese or meat, or anything you want to make it your own!
- Don’t overbake. Make sure to keep an eye on the casserole and remove it as soon as the eggs are done.











