Keto Sausage & Egg Casserole Omelet (low carb)

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This Keto Sausage and Egg Casserole Omelet is an easy and satisfying low carb breakfast that can be made ahead for convenience. This keto breakfast recipe is simple to prep and makes for a hearty breakfast casserole that everyone will love. 

Low Carb Sausage & Egg Casserole Omelet on a plate

HOW TO MAKE KETO SAUSAGE AND EGG CASSEROLE

I love an easy breakfast casserole I can make ahead at the beginning of the week that covers several days for us. Having breakfast already prepared makes mornings so much easier plus, there is little mess to clean, which is always a plus. All I have to do is pop a serving in the microwave, and breakfast for my kids is made.

As a homeschool momma, I’d rather spend less time at breakfast and finish our day a few minutes earlier in the afternoon. My hubby can grab a serving to enjoy before he leaves for work in the morning. 

If you like this low carb breakfast casserole, make certain to check out this Keto Breakfast Bake with Ham, Eggs, and Cheese as well. 

Ingredients:

  • Breakfast Sausage – You can use mild or hot.
  • Green Bell Pepper – Also, use red and orange for different flavor profiles. 
  • Onion – Onions give any dish more flavor and texture/ 
  • Eggs – Mixed to make the thickness once baked. 
  • Heavy Whipping Cream – Gives it a bit of richness and adds fat to keep you full. 
  • Worcestershire sauce – Optional.
  • Mustard – Adds additional flavor and pairs perfectly with sausage. 
  • Cheese – You can never have too much cheese. You can swap out different varieties if you prefer. 
  • Seasonings– Use as directed and then taste test. 

cast iron skillet with browned sausage and chopped onions and green peppers for low carb breakfast casserole

Step 1: Preheat oven to 350 degrees and grease a 9 X 13 casserole dish. In a skillet, brown sausage until it is halfway done, then add the chopped green bell pepper and chopped onion. Next, drain the excess grease. 

browned sausage with onions and green peppers in the bottom of a casserole dish for low carb breakfast casserole

Step 2: Add the sausage and veggie mixture to the casserole dish.

bowl of egg mixture with shredded cheese and seasonings on top for low carb egg bake

Step 3: In a bowl, combine all other ingredients reserving 1/4 cup of the cheese to sprinkle on top. 

Step 4: Pour the egg mixture on top of the sausage and veggies, then use a spoon to stir a little in the casserole dish to combine all of the ingredients.

baked low carb breakfast casserole

Step 5: Sprinkle the reserved cheese on top, then pop the casserole dish then bake in the oven for 20 to 23 minutes. Enjoy! 

keto sausage casserole on a plate

Garnish with fresh chives or parsley.

TIPS FOR MAKING THE BEST SAUSAGE BREAKFAST CASSEROLE

I always use freshly grated cheese to avoid additives that are included in preshredded. I think the freshly shredded takes so much better.

I pour the drained sausage in a 9 X 13 casserole dish. If you had rather, you could mix it up with all the other ingredients then pour it in the casserole dish. 

This Low Carb Sausage & Egg Casserole Omelet is the perfect breakfast with only two net carbs per serving.

CAN YOU MAKE THIS SAUSAGE AND EGG CASSEROLE THE NIGHT BEFORE? 

Absolutely. This is one of the best parts about this keto breakfast. It’s easy enough to whip up and have waiting in the fridge to bake in the morning. Meal prepping this simple egg bake is a great way to save time on hectic mornings. 

HOW DO YOU STORE LEFTOVERS OF THIS SAUSAGE, EGG & CHEESE CASSEROLE?

Store the leftovers in the fridge for up to 3-4 days. Any longer than that and you might want to think about freezing it to enjoy another time. I typically freeze in single servings wrapped in plastic wrap; then, I put all of them in a freezer-safe container or zip lock baggy. When you’re ready to eat the leftovers, just pop in the microwave for a few short seconds and enjoy. 

MORE LOW CARB BREAKFAST RECIPES:

If you love our simple sausage egg cheese breakfast casserole, then I know you will enjoy checking out all of my family’s favorite recipes in my Keto Recipes Index.  With tons of delicious sweet and savory options perfect for the keto diet, you will love this tool. I’ve shared a few more favorites below for a quick start to your menu. 

collage of two pics with keto sausage & egg omelet casserole

Chaffle Waffle Chicken Salad

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How to make Keto Sausage & Egg Casserole Omelet

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4.68 from 91 votes

Keto Sausage & Egg Casserole Omelet

Keto Sausage & Egg Casserole Omelet is an easy and satisfying breakfast that can be made ahead for convenience.
Prep Time15 mins
Cook Time22 mins
Total Time37 mins
Course: Breakfast
Cuisine: American
Keyword: Keto Sausage and Egg Casserole
Servings: 12
Calories: 312kcal
Author: Kasey Trenum

Ingredients

  • 1 lb breakfast sausage (mild or hot)
  • 1/2 green bell pepper, chopped
  • 1/4 onion, chopped
  • 7 eggs
  • 3/4 cup heavy whipping cream
  • 2 cups cheese
  • 1 tsp regular mustard
  • dash nutmeg
  • 1/2 tsp salt
  • 1/4 tsp pepper
  • 1 tsp Worcestershire sauce (optional)

Instructions

  • Preheat oven to 350 degrees and grease a 9 X 13 casserole dish.
  • In a skillet, brown sausage until it is halfway done, then add the chopped green bell pepper and chopped onion. Next, drain the excess grease. 
  • In a bowl, combine all other ingredients reserving 1/4 cup of the cheese to sprinkle on top. 
  • Add the sausage and veggies to the casserole dish, then pour the egg mixture on top and use a spoon to stir a little in the casserole dish to combine all of the ingredients.
  • Sprinkle the reserved cheese on top, then pop the casserole dish in the oven and bake for 20 to 23 minutes. Enjoy! 

Nutrition

Calories: 312kcal | Carbohydrates: 2g | Protein: 12g | Fat: 28g | Saturated Fat: 14g | Cholesterol: 173mg | Sodium: 436mg | Potassium: 181mg | Vitamin A: 835IU | Vitamin C: 4.4mg | Calcium: 173mg | Iron: 1mg
Tried this recipe?Mention @kaseytrenumblogger or tag #kaseytrenumblogger!

collage of low carb casserole and a piece of the cut keto breakfast casserole on a plate

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87 Comments

    1. I’m so sorry. It should have said regular mustard. You were correct to use regular mustard.

  1. 5 stars
    I subbed no sugar added oatmilk for the cream and used manchego cheese–all to get this recipe to be cow dairy free. Also subbed mushrooms for the peppers. It was delicious!

  2. 5 stars
    Delicious! My husband and I enjoyed this casserole which is perfect for our keto diet! Looking forward to the leftovers.

  3. 5 stars
    I’ve made this a bunch and absolutely love it!!!! I am wondering if a person could substitute bacon for the sausage though. Thoughts?

  4. 5 stars
    This is so good. I had some left over green chillies, so I swapped that for the peppers and it’s perfect. I made it for my husband to take for lunch tomorrow, but I ate a whole piece right away and I’m not doing Keto. I’m excited to look at your other recipes. Thank you!

    1. The number of servings is listed at the top of the recipe card. I divide it evenly by that number for the nutritional info.

  5. 5 stars
    I cooked exactly as directed with the exception of omitting the green peppers (only because I don’t like them). I was a little heavy handed with the nutmeg… it was more than a dash… but that was completely my fault and it was still delicious!

  6. 5 stars
    Hi, I wanted to make this last minute , but dont have any heavy cream. Can you substitute 2% milk for the cream? Thank you!

    1. The number of servings is listed at the top of the recipe card. Then, I use that number to divide it evenly.

    1. I am going to prepare it ahead of time and freeze it. Pop it in the oven on Christmas or Boxing day morning!

  7. 5 stars
    Delicious! Had to bake like 26 minutes, but may be my oven.
    Also chose to omit the bell peppers and onions

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