Keto Sausage Breakfast Casserole

5 Stars (4 Reviews) 6 Comments

An easy cheesy keto breakfast casserole that's overflowing with sausage, eggs and flavor. This make ahead low carb breakfast is a hearty option perfect for meal prep and loved by the whole family.

Keto sausage breakfast casserole is a perfect option when you need to feed a crowd first thing in the morning or you want to meal prep an easy keto breakfast recipe for the week. Rather than making eggs and sausage separately, just throw them all together along with cream, cheese and a few other ingredients to make a simple hearty breakfast.

keto breakfast casserole on stacked plates with a glass of milk

This dish is filled with loads of eggs, sausage, cheese and green onion. Plus, it has a bread like consistency with the help of a little coconut flour; although, you could substitute with oat fiber which adds a earthy oat flavor without adding addition carbs!

Serve with a stack of keto pancakes and bring on the coffee! Get ready to kick start your morning with this delicious, no-fuss keto breakfast casserole!

How to make keto breakfast casserole

Making a low carb breakfast casserole is easy. That’s why they are ideal for meal prep. It’s a simple way to make days worth of breakfast with just one recipe.

  1. Cook the sausage – Brown breakfast sausage in a skillet.
  2. Whisk egg mixture – In a large bowl, whisk eggs, cream, coconut flour, seasonings, green onions and cheese.
  3. Add to casserole dish – Stir in cooked sausage and pour into a baking dish. Top with more shredded cheese.
  4. Bake at 350 degrees Fahrenheit for 20-28 minutes or until egg casserole is set on top.

Close up of an egg, sausage casserole topped with cheese.

Key ingredients & substitutions

Since this keto breakfast recipe involves very few ingredients, it comes together fairly quickly. And there are plenty of ways your can customize this base casserole recipe to fit your taste preferences.

  • Sausage – Can use any type of sausage. From breakfast sausage, Italian sausage, ground pork, Kielbasa or polish sausages. Even bacon can be used!
  • Eggs – A necessary ingredient if you are making an egg casserole. Can substitute with egg whites.
  • Cream – Heavy whipping cream gives the best flavor; however, nut milk (like almond milk, coconut milk or macadamia nut milk) can be substituted.
  • Coconut flour – Helps to give the keto casserole a bread like consistency so it’s not all eggy textured or flavored. Don’t like coconut flour? Try using oat fiber instead! Add 2 tablespoons.
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Keto Sausage & Egg Casserole Ingredients

  • 1 tablespoon olive oil
  • 1 pound ground sausage
  • 6 eggs
  • ½ cup heavy whipping cream
  • ¾ teaspoon salt
  • ½ teaspoon pepper
  • ⅓ cup coconut flour or 2 tablespoons oat fiber
  • 1 teaspoon baking powder
  • 3 green onions, sliced
  • 8 oz shredded cheddar cheese

Keto Sausage Breakfast Casserole Directions

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A cheese covered casserole in a white dish with forks nearby and a slice on a plate.


Besides sausage, egg and cheese, you can use this recipe as a base to make different flavor combinations

Mix up the proteins

  • Instead of sausage, try using bacon, ham or even pepperoni!
  • In place of whole eggs, use egg whites for a lower fat, lower calories option.

Add vegetables

  • Green onions are added for a hint of flavor and pop of color, but there are others you can add or use in place.
  • Try added low moisture content veggies like broccoli, asparagus or spinach. Sauté these briefly until tender before adding to the casserole.
  • Other vegetables like cauliflower, zucchini, tomatoes and mushrooms should be cooked first and moisture removed before adding to the casserole in order to prevent a watery casserole.

Use different cheeses

  • Besides cheddar cheese, try using other flavors like pepper jack, shredded Colby jack or Monterey jack cheese.
  • Other types of cheeses like goat cheese, feta or even cream cheese could be substituted.
A slice of breakfast egg casserole on a stack of plates in front of milk.

Storage information & meal prep instructions

Meal prep & reheating

The best part about this recipe is that you can make it ahead of time. It’s the perfect keto breakfast for meal prep or Christmas morning. Leftover keto casserole is perfect for busy weekday mornings when you have to fly out the door.

To bake this breakfast casserole later, prepare as instructed above and pour mixture into your baking dish. Cover tightly with plastic wrap and refrigerate for up to 24 hours. Remove from the refrigerator about 30 minutes before baking and cook as instructed above.

Once the keto egg casserole is baked, cut into squares. Each morning, simply take out a square and heat it up in the microwave, oven or air fryer for a few minutes.

Refrigerator storage

Store leftover breakfast casserole in a large storage container in the refrigerator for up to 4-5 days.

Freezer storage

You can freeze leftover breakfast casserole for up a month; however, the texture and flavor might not be as good as it was the first day you baked it.

Other easy make ahead keto breakfast ideas

Here are some other low carb breakfasts that you can meal prep ahead of time.

Keto Sausage Breakfast Casserole: FAQS

Can I add vegetables to this keto breakfast casserole?

Yes, you can add vegetables to your breakfast casserole; however, it may change the moisture content of the dish. For instance, cauliflower and zucchini tend to have a higher water content compared to broccoli or asparagus which may cause your casserole to be a little watery.

How to tell if my egg casserole is done cooking?

Besides just gently touching the top center of the casserole to make sure it springs back firmly. The internal temperature should be around 160 degrees Fahrenheit.

Can I add more eggs to this casserole?

Yes! I have added up to 10 eggs to make this casserole.

Nutritional information & Macros

Nutrition Information

Keto Sausage Breakfast Casserole

Servings: 8

Amount Per Serving
Calories 389
Fat 30.1g
Protein 24.2g
Total Carbs 4g
Net Carbs 2.3g

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  1. Just tried this recipe and I must say it is very delicious. Very easy and quick to make, even my kids liked it.
    Thank you.

  2. I made this recipe this morning and my family loved it. No more Jimmy Dean for them LOL!!!!!!!. Later today, we are going to try the Avocado pudding. I hope that’s a hit as well. Thank you for taking the time to provide these recipes for free.

  3. OMG this is a forgiving recipe. I only had 1/2 a lb of sausage, so I cooked and added 12oz of crispy bacon, added 2 extra eggs and about an extra cup of cheese. This was so easy and quick to make, this literally disappeared in 20 min.

    Thank you!

  4. Hi 😊 I don’t have heavy cream right now, do you think cream cheese could work in place of it?? Thank you!!

    1. You could try that but you would probably need to add a little bit more liquid too. So maybe try 4 oz of cream cheese and 1/3 cup of nut milk, water or 2 extra eggs

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