Main Dishes

Keto Meatball Casserole

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Keto Meatball Casserole is packed with low carb meatballs, sauce, and cheese. Serve with your favorite noodles for a complete meal the whole family is sure to absolutely love.

overhead view of keto meatball casserole in white baking dish with forks, napkin, and plates

I wasn’t sure if I was going to share this recipe on the blog or not. It has made a frequent appearance in on my dinner menu over the past few months. It is so delicious, loaded with flavor, and completely low carb. 

For this keto meatball casserole, I used my recipe for homemade pasta sauce which cooks up in minutes. The pasta sauce requires a pinch of sugar and you can omit it or use stevia. I have done both with no problem. If you prefer to use pasta sauce from a jar, then that is totally fine as well. 

The recipe requires homemade meatballs, but no worries as they are baked in the oven using the same dish that you will use to make the casserole.  

What ingredients are needed Meatball Casserole?

  1. Low carb meatballs
  2. Easy homemade pasta sauce
  3. Mozzarella cheese or any your prefer

How to Make the Low Carb Meatball Casserole:

This recipe begins by making the low carb meatballs. 

To a large mixing bowl, add in the ground beef, mozzarella, parmesan, egg, chopped onion, garlic powder, Italian seasoning, salt, and ground black pepper.

ingredients for keto meatball casserole in a while mixing bowl

Stir together using a large spoon on by hand until all of the ingredients are combined and the meat mixture sticks together to form a large ball. 

low carb meatball mixture in a white mixing bowl

Using a scoop or by hand, form the meatballs any size that you like. Place the meatballs in a casserole dish leaving a small amount of space between each meatball. Basically just make sure they are not touching each other or the side of the dish. 

low carb meatballs for keto meatball casserole in white baking dish

Place in the preheated oven and bake at 400 degrees F. for 15 to 20 minutes depending on the size of your meatballs. 

Remove the meatballs from the oven and drain off the excess fat. It may be easier to use a slotted spoon and remove the meatballs and place in a small bowl or dish for a moment. Completely drain the dish of any fat and evenly coat the bottom of the dish with half of the pasta sauce. 

Place the meatballs evenly on top of the sauce. 

meatballs over pasta sauce in white baking dish for keto meatball casserole

Top the meatballs with the rest of the pasta sauce. Make sure each individual meatball is covered in the pasta sauce. Use a spoon to spread it evenly. 

low carb meatballs in baking dish covered with pasta sauce

Top the keto meatball casserole with the shredded mozzarella cheese spread out in an even layer.

keto meatball casserole in baking dish covered in cheese before baking

Place into the oven and bake an additional 10 to 15 minutes, until the cheese is melted and bubbly. 

Serve warm on top of your favorite pasta or with a side of your favorite vegetable. If using this as a family meal, I usually serve mine over zucchini noodles and the rest of the family over spaghetti noodles. 

Store any leftovers in an airtight container in the refrigerator up to 3 days. 

meatballs on white plate from keto meatball casserole

freshly baked keto meatball casserole with two forks

Keto Meatball Casserole

Keto Meatball Casserole is packed with low carb meatballs, sauce, and cheese. Serve with your favorite noodles for a complete meal the whole family is sure to absolutely love.
5 from 1 vote
Print Rate
Course: Main Course
Cuisine: American
Keyword: keto meatball casserole
Prep Time: 15 minutes
Cook Time: 30 minutes
Servings: 4
Calories: 455kcal

Ingredients

  • 1 pound ground beef
  • 1/2 cup shredded mozzarella cheese
  • 1/4 cup shredded or grated Parmesan cheese
  • 1 large egg
  • 1/2 cup onion, chopped
  • 1 teaspoon garlic powder
  • 1/2 teaspoon Italian seasoning
  • 1/4 teaspoon salt
  • 1/2 teaspoon ground black pepper
  • 24 ounces pasta sauce
  • 1/3 cup shredded mozzarella cheese

Instructions

  • To a large mixing bowl, add in the ground beef, 1/2 cup mozzarella, parmesan, egg, chopped onion, garlic powder, Italian seasoning, salt, and ground black pepper.
  • Stir together, using a large spoon on by hand, until all of the ingredients are combined and the meat mixture sticks together to form a large ball.
  • Using a scoop or by hand, form the meatballs any size that you like. Place the meatballs in a casserole dish leaving a small amount of space between each meatball. Basically just make sure they are not touching each other or the side of the dish. 
  • Place into the preheated oven and bake at 400 degrees F. for 15 to 20 minutes depending on the size of your meatballs.
  • Remove the meatballs from the oven and drain off the excess fat. It may be easier to use a slotted spoon and remove the meatballs and place in a small bowl or dish for a moment. Completely drain the dish of any fat and evenly coat the bottom of the dish with half of the pasta sauce. 
  • Place the meatballs evenly on top of the sauce. Top the meatballs with the rest of the pasta sauce. Make sure each individual meatball is covered in the pasta sauce. Use a spoon to spread it evenly.
  • Top the keto meatball casserole with the shredded mozzarella cheese spread out in an even layer. Place into the oven and bake an additional 10 to 15 minutes, until the cheese is melted and bubbly. 
  • Serve warm on top of your favorite pasta or with a side of your favorite vegetable. Store any leftovers in an airtight container in the refrigerator up to 3 days.

Nutrition

Calories: 455kcal | Carbohydrates: 13g | Protein: 31g | Fat: 31g | Saturated Fat: 13g | Cholesterol: 156mg | Sodium: 1381mg | Potassium: 938mg | Fiber: 3g | Sugar: 8g | Vitamin A: 1020IU | Vitamin C: 13mg | Calcium: 251mg | Iron: 4mg
DID YOU MAKE THIS RECIPE?Tag @simplylakita on Instagram and hashtag it #simplylakita!

two meatballs from keto meatball casserole on small white plate.

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Have any comments, questions, or other delicious ideas for this Keto Meatball Casserole? Please share them in the comments below!


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