Cheese-Stuffed Keto Meatballs in Tomato Sauce

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

Juicy keto meatballs stuffed with melted mozzarella, simmered in a rich, low-carb tomato sauce perfect for a hearty meal. This italian-inspired keto (low carb) ready in about 45 minutes blends (85% lean) ground beef, grated parmesan cheese, large egg into a versatile sauce that lifts everything from grain bowls and roasted vegetables to grilled proteins — a small-batch staple worth keeping in the fridge. Each serving lands at about 430 calories and feeds 4, so a small batch covers several meals across the week without taking over the fridge. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 20 min Cook: 25 min Serves 4 Italian cuisine 430 cal/serving
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Ingredients

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Instructions

  1. Step 1: In a large bowl, combine 1 lb ground beef, 1/4 cup grated parmesan cheese, 1 large egg, 1/3 cup almond flour, 3 minced garlic cloves, 2 tbsp chopped fresh parsley, 1 tsp salt, and 1/2 tsp black pepper. Mix gently until just combined.
  2. Step 2: With wet hands, form 12 equal meatballs, inserting one 1/2 oz mozzarella cube into the center of each and sealing completely.
  3. Step 3: Heat 2 tbsp olive oil in a large skillet over medium-high heat. Add meatballs and brown on all sides, about 3 minutes per side.
  4. Step 4: Remove excess fat from the skillet, then add 14 oz canned crushed tomatoes, 1 tsp dried oregano, 1/4 tsp red pepper flakes (if using), and 1/4 cup water. Stir gently to combine.
  5. Step 5: Reduce heat to low and simmer uncovered for 15 minutes until meatballs are cooked through and sauce thickens slightly.
  6. Step 6: Serve hot, spooning sauce over meatballs and garnishing with extra parsley if desired.

Frequently asked questions

How long does Cheese-Stuffed Keto Meatballs in Tomato Sauce take to make?

Total time is about 45 minutes (20 min prep + 25 min cook). A small batch typically covers several meals in the week — store as the recipe directs.

How do I store leftover Cheese-Stuffed Keto Meatballs in Tomato Sauce?

Transfer to an airtight jar and refrigerate for up to 5–7 days. Most sauces freeze well for up to 2 months — portion into small containers or freezer bags so you can thaw only what you need. Stir before serving; cream- or yogurt-based sauces may separate on standing.

Can I substitute ingredients in Cheese-Stuffed Keto Meatballs in Tomato Sauce?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Cheese-Stuffed Keto Meatballs in Tomato Sauce for a different number of people?

The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

Is Cheese-Stuffed Keto Meatballs in Tomato Sauce keto?

Yes — this recipe is tagged keto, low carb based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.

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