
Quick and easy low carb and keto skillet breakfast. It also makes for amazing leftovers. The sweetness of the caramelized onions are what really make this such an awesome breakfast casserole. Spicy Sausage and Caramelized Onion Casserole – You must try this recipes.

This low carb casserole reheats well for at least 3 days. It has all the things a good breakfast casserole should have. Lots of spicy ground sausge and cheese plus mushrooms and caramelized onions.
There’s lots of different flavors in every bite. Caramelized onions take a little time and patience to make but they are divine and they really stand out in this casserole.
Let us know if you liked this recipe. Try the other recipe categories as well!
If you like Spicy Sausage And Caramelized Onion Casserole, you can try similar recipes:
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Spicy Sausage And Caramelized Onion Casserole
Course: BreakfastCuisine: Ketogenic9
servings20
minutes40
minutes444
kcalThe sweetness of the caramelized onions are what really make this such an awesome breakfast casserole.
Ingredients
3 tablespoons butter
1 large sweet onion, diced
1 pound spicy breakfast sausage
1 (8-ounce) package white mushrooms, sliced
10 large eggs
3/4 cup heavy cream
1 1/2 cups shredded Colby Jack cheese
1/2 teaspoon garlic powder
1/2 teaspoon salt
1/4 teaspoon pepper
Directions
- Melt butter in a large skillet over medium-low heat. Add onion and cook, stirring occasionally until golden, about 15 minutes. Let cool slightly.
- In a second large skillet cook and crumble sausage meat. When sausage is about halfway done, add mushrooms. Continue to cook until sausage is no longer pink and mushrooms are golden brown. Let cool slightly.
- In a large bowl, whisk together eggs and heavy cream. Stir in cheese, garlic powder, salt and pepper.
- Transfer sausage, mushrooms, and onions to a greased 7×11-inch pan. Pour egg mixture over the top.
- Bake for 40 minutes in a 350 degree oven.
Notes
- To save time, cook the onions a day in advance.
- Use regular ground sausage and make this casserole non-spicy.
- Change out the Colby Jack cheese for cheddar cheese or Swiss cheese for a different flavor.
- Be sure to keep the heat low while cooking the onions or they will burn.
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