Sausage Breakfast Casserole

Simple ingredients with a flavorful result — that’s why this breakfast sausage casserole is always a favorite!

It requires minimal effort to make, stores well, and is a great choice for meal prepping for busy weekdays, weekend brunches, or holiday breakfasts.

💛 Why you’ll love this recipe

• Very easy to make.
• Requires only straightforward ingredients that you may already have on hand!
• Stores well and is great for meal prepping.
• High in protein, low-carb, and gluten-free.

➡️ Ingredients

• Ground Italian sausage
• Large eggs
• Shredded sharp cheddar cheese
• Shredded mozzarella cheese
• Heavy cream
• Salt
• Pepper
• Fresh chives (optional garnish)

(Need ingredient substitution suggestions? See that section below for my recommendations.)

⏲ How to make this sausage breakfast casserole

This is an overview of the recipe’s instructions. The full instructions can be found in the recipe card at the bottom of this post.

• Preheat Oven and Prep Baking Dish: Preheat the oven to 400 degrees F and coat a 9×13-inch baking dish with nonstick cooking spray.
• Cook Sausage: To a large skillet over medium-high heat, add sausage, and break it apart with a wooden spoon. Cook sausage until browned, about 5 minutes. Remove pan from heat and, using a slotted spoon, transfer browned sausage to a prepared baking dish and set aside. (Alternatively, carefully drain grease into a jar or container and then pour browned sausage into the baking dish.)
• Prepare Egg Mixture: To a large bowl, add eggs, shredded cheddar, shredded mozzarella, heavy cream, salt, and pepper. Using an electric mixer, mix until well-combined. Pour the egg mixture atop the browned sausage in the baking dish.

• Bake Casserole: Transfer the baking dish to the middle oven rack and bake until the edges of the casserole are golden brown and bubbling, which should take about 30-35 minutes.
• Slice and Serve: Remove the baking dish from the oven and allow the casserole to cool slightly before slicing it into pieces. Garnish with a sprinkle of chopped fresh chives.

👉 Ingredient substitution suggestions

• Ground Italian Sausage: Any ground protein will work here. You can try ground beef, turkey, or chicken. You can also use cubed pre-cooked ham or sausage links.
• Shredded Cheeses: Any shredded cheese will work here. Something like shredded pepper jack cheese would work great.
• Heavy Cream: Use half-and-half or whole milk.
• Fresh Chives: Use green onions.

✨ Variations

• Add veggies like chopped red bell pepper, green bell pepper, and/or onion for added flavor. Add these into the pan with the browned sausage and cook on the stovetop for 3-4 minutes.
• Lightly brown some frozen hashbrowns in the same pan used to cook the sausage. If you go this route, put the browned hashbrowns as the bottom layer of the casserole and then add the browned sausage on top.
• Stir in some garlic powder, onion powder, and/or dry mustard towards the end of the time the sausage is browning.

〰️ How to serve

• Potatoes – Breakfast Potato Skillet.
• Bread – Keto Bread, Flaky Smoked Biscuits.
• Drinks – Keto Cinnamon Dolce Latte, Keto Green Smoothie.
• Sweet – Keto Coffee Cake, Keto Raspberry Cake Bars, Baked French Toast Casserole, Gluten Free Monkey Bread

💬 FAQs

📚 More breakfast recipes

• Bacon Egg and Cheese Breakfast Sliders
• Keto Bagels
• Keto Breakfast Muffins
• Keto Sausage
• Keto Krispy Kreme Donuts
• Baked Avocado Egg
• Keto Crustless Spinach Quiche
• Keto Waffles
• Keto Eggs Benedict
• Keto White Sausage Gravy