{VIDEO} Slow Cooker/Instant Pot Mozzarella Stuffed Meatballs (Low-Carb, Keto)

These easy mozzarella stuffed meatballs are simple yet flavorful. Make these low-carb, cheese-filled meatballs in your slow cooker or Instant Pot.

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Updated 2019 with Instant Pot instructions

There are several meatball recipes on this blog because…I love meatballs. They’re quick to make, healthy (as you want to make them) and you can use them in countless recipes. Since I’m on a low-carb, cheese kick I thought why not make mozzarella stuffed meatballs to switch things up a bit.

Low-Carb/Keto Meatballs

These might look fancy but trust me, they’re pretty effortless. I used Butcher Box ground beef for my meatballs but by all means, use your preferred meat whether it’s beef, turkey, pork, chicken. I made my meatballs low-carb/keto by using almond flour instead of breadcrumbs. You don’t have to use my meatball recipe. If you have your own, of course you can use that instead.

9 large mozzarella stuffed meatballs

How many meatballs should you make? I used a 6-quart slow cooker and I purposely made my mozzarella stuffed meatballs larger than usual so I got 9 meatballs. Make as many meatballs as your slow cooker or Instant Pot will hold and yes you can stack them on top of each other if you are using a smaller appliance.  You should get anywhere from 9 to 12 meatballs using one pound of meat. If you’re feeding a large crowd, you can double the recipe.

before (slow cooker)

Other meatball recipes you might enjoy:

Slow Cooker Meatball Zoodle Soup (Low-Carb, Paleo, Whole30)

Slow Cooker Spaghetti Squash & Meatballs (Low-Carb, Paleo, Whole30)

Slow Cooker/Instant Pot Italian Meatball Dinner (Paleo, Whole30)

Slow Cooker/Instant Pot Zoodles & Meatballs (Low-Carb, Paleo, Whole30)

after (slow cooker)

Adding The Mozzarella

I stuffed one single 1/3 oz ciliegine mozzarella balls in each meatball. You doesn’t matter what form your mozzarella comes in. Meaning, you don’t have to go out and buy ciliegine mozzarella balls. They can be expensive, I know. Another options is to take shredded mozzarella and ball it up with your hands. What’s most important is that you use mozzarella that’s a good ratio to the meatball. Trust me, it’s rather disappointing to open up a large meatball and have barely any mozzarella oozing out.

How To Serve These Meatballs

Are you living a specific dietary lifestyle? For low-carb/keto I suggest serving these over zucchini noodles (zoodles),  spaghetti squash, riced or mashed cauliflower or eat them as-is with a nice simple salad.  If you’re not on a particular diet, serve these mozzarella stuffed meatballs the old-fashioned way – with pasta!

Slow Cooker Mozzarella Stuffed Meatballs VIDEO:

{VIDEO} Slow Cooker/Instant Pot Mozzarella Stuffed Meatballs (Low-Carb, Keto)

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• Author: Fit SlowCooker Queen
• Prep Time: 10 mins
• Cook Time: 3 hours
• Total Time: 3 hours 10 mins
• Yield: 4 servings 1x

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Ingredients

• 2 tsp oil for IP
• 4–6 ounces mozzarella

Sauce:

• 28 ounces crushed or diced tomatoes
• 1 tbsp dried onion flakes (or 1 small onion, diced)
• 1 garlic clove, minced
• 1 tbsp Italian seasoning

Meatballs:

• 1 lb ground meat
• 2 tbsp Italian seasoning
• 1 egg
• 2 tbsp almond flour
• 1 garlic clove, minced
• 1/2 tsp salt
• 1/4 tsp pepper

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Instructions

Slow Cooker

1. In a large bowl, mix together MEATBALLS ingredients. Taking 2-4 tbsp of meat*, form into a ball and then flatten the ball in the middle.
2. Add mozzarella to the center of the flattened meat. Re-form meat around the mozzarella and shape into a ball. Repeat until all the meat is used.
3. Pour SAUCE ingredients into the slow cooker. Add the meatballs.
4. Cook HIGH 2-3 hours or LOW 4-6.

Instant Pot

1. In a large bowl, mix together MEATBALLS ingredients. Taking 2-4 tbsp of meat*, form into a ball and then flatten the ball in the middle.
2. Add mozzarella to the center of the flattened meat. Re-form meat around the mozzarella and shape into a ball. Repeat until all the meat is used.
3. Set Instant Pot to the high saute setting. Once hot, add oil.
4. Add meatballs and brown on each side, 3-5 minutes. Remove meatballs from IP. You might have to brown them in batches.
5. Add sauce ingredients and stir to mix well.  Add the meatballs back into the pressure cooker.
6. Close and seal vent. Select manual setting and set time for 7 minutes. Quick-release pressure when cook time is completed.

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Notes

*You can make the meatballs as large or as small as your slow cooker will hold.

If some of the cheese seeps out of the meatballs when they cook, don’t worry it’s normal. I think of it as a good thing because it makes the sauce nice & cheesy. For the seasoning, if you don’t have an Italian seasoning already, use this one:

I used a  6-quart slow cooker or Instant Pot for this recipe.

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