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Keto Meatball Casserole {Only 5 Ingredients!}

This Keto Meatball Casserole with Italian meatballs is the easy keto dinner recipe you’ve been looking for! It takes only five ingredients and is ready in under 45 minutes.

overhead view of keto meatball casserole in a white casserole dish next to dish towel

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That mouthwatering casserole up there requires only five ingredients and can be on your dinner table in less than 45 minutes! This fabulous keto casserole recipe is one you’ll certainly make over and over again, especially on those busy nights when you need a keto-friendly dinner ASAP.

Why You’ll Love This Keto Meatball Casserole

  • It requires only five ingredients.
  • It takes less than 45 minutes to make.
  • Everyone in the family will gobble it up, keto or not!
  • The simple meatball base can be used to make meatballs for other occasions without the rest of the casserole. I personally make them sometimes as a quick keto meal prep!

Ingredients Needed to Make Keto Italian Meatball Casserole

Ingredient quantities for this keto casserole are located in the recipe card at the end of the post.

  • Mild Italian sausage – see my brand recommendations later in the post
  • Shredded Parmesan cheese
  • Almond flour
  • Sugar-free marinara or pasta sauce – see my brand recommendations later in the post
  • Mozzarella cheese
  • Optional sixth ingredient: Grated parmesan and romano cheese – see recipe card for an explanation of why you might need to include this

How to Make Keto Italian Sausage Meatball Casserole

This is just a quick overview of how to make the low carb meatball casserole. For the recipe in detail, scroll to the recipe card at the end of the post.

First, combine the sausage, Parmesan cheese, and almond flour.

bowl containing keto meatball ingredients unmixed

Then create 1 1/2″ meatballs and brown them in a non-stick skillet.

side by side italian meatballs for the keto casserole

Transfer meatballs to a baking dish and top with sauce and cheese.

overhead view of keto meatball casserole covered with cheese before baking

Bake as outlined on the recipe card at the end of the post. Then remove from oven, allow to cool for a few minutes, and serve!

overhead view of keto italian meatball casserole in a small serving bowl

What Brand of Mild Italian Sausage Should I Use in my Keto Meatball Casserole?

For a budget-friendly option, I recommend using Johnsonville Mild All Natural Italian Ground Sausage. It is gluten-free, dairy-free, MSG-free, and contains no artificial colors, artificial flavors, nitrates, or nitrites. It does contain a tiny amount of sugar, but not enough to be harmful or to boost the carb content. (Bacon is the same way; nearly all brands contain a touch of sugar.)

If you want an entirely sugar-free option, I recommend Pederson’s No Sugar Ground Italian Sausage.

What Brand of Sugar-Free Marinara or Pasta Sauce Should I Use?

If you can find it, Rao’s Vodka Sauce is the best sauce for this recipe!

Second-best is Thrive Market’s Vodka Pasta Sauce.

If neither of those are readily available to you, any sugar-free sauce will suffice (check the labels and go for the lowest-carb option), but if the sauce you use doesn’t include parmesan and romano cheese, I recommend stirring in 1/4 cup parmesan and romano cheese to your sauce before adding it to to the recipe. This will add 26 calories, 1.5g fat, 2g protein, and 0g carbs to each serving.

Nutrition Facts for Keto Meatball Casserole

Each serving (six servings) contains:

  • 386 calories
  • 27g fat
  • 28g protein
  • 6g net carbs

fork holding up a bite of keto meatball casserole

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overhead view of keto meatball casserole in a white casserole dish next to dish towel

Keto Meatball Casserole

This Keto Meatball Casserole with Italian meatballs is the easy keto dinner recipe you've been looking for! It takes only five ingredients and is ready in under 45 minutes.
Print Pin Rate
Course: Dinner, Lunch
Cuisine: American, Italian
Keyword: keto meatballs, low carb meatballs
Prep Time: 10 minutes
Cook Time: 33 minutes
Total Time: 43 minutes
Servings: 6
Calories: 386kcal

Ingredients

  • 1 lb ground mild Italian sausage
  • 1/3 cup shredded Parmesan cheese
  • 3 tbsp almond flour
  • 24 oz sugar-free marinara or pasta sauce
  • 1 cup mozzarella cheese
  • Optional: 2 tbsp grated parmesan and romano cheese see notes

Instructions

  • Preheat oven to 400°.
  • Combine Italian sausage, Parmesan cheese, and almond flour in a large bowl. Roll mixture into 1 1/2-inch balls. Place balls in a large nonstick skillet. Cook for 8 minutes, until meatballs are browned on all sides.
  • Transfer meatballs to an 8- x 8-inch baking dish. Top with sauce and cheese.
  • Bake, covered with foil, at 400° for 15 minutes. Remove foil and cook for an additional 10 minutes or until cheese is melted and lightly browned.

Notes

  • See post for sausage and sauce recommendations!
  • If the sauce you use doesn't include parmesan and romano cheese, I recommend stirring in 1/4 cup parmesan and romano cheese to your sauce before adding it to to the recipe. This will add 26 calories, 1.5g fat, 2g protein, and 0g carbs to each serving.
Nutrition Facts
Keto Meatball Casserole
Amount Per Serving
Calories 386 Calories from Fat 243
% Daily Value*
Fat 27g42%
Carbohydrates 8g3%
Fiber 2g8%
Protein 28g56%
* Percent Daily Values are based on a 2000 calorie diet.

Nutrition Disclaimer



Nutrition facts are included as a courtesy only. They are accurate to the best of our knowledge based on the ingredients and brands used, but their accuracy is not guaranteed. If applicable, sugar alcohols have already been removed from the total carb count.

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Welcome! I’m Jessica.

On this blog, you’ll find recipes and tips that will help you live a delicious low-sugar and low-carb life. Thanks for visiting!