Cheese-Stuffed Meatballs with Zucchini Marinara

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

Juicy ground beef meatballs stuffed with melting mozzarella, simmered in a low-carb tomato zucchini sauce for a hearty keto dinner. This italian-inspired keto (keto, low carb) ready in about 50 minutes pairs (85% lean) ground beef, grated parmesan cheese, large egg for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 480 calories and feeds 4, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. 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: 30 min Serves 4 Italian cuisine 480 cal/serving
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Ingredients

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, 2 minced garlic cloves, 1 tsp dried oregano, 1 tsp salt, and 1/2 tsp black pepper. Mix gently until combined.
  2. Step 2: Form mixture into 16 equal portions and flatten each into a disc. Place a 1/4 oz mozzarella cheese cube in the center and wrap the meat around it, sealing completely to form stuffed meatballs.
  3. Step 3: Heat 2 tbsp olive oil in a large skillet over medium heat. Brown the meatballs on all sides, about 8 minutes total. Remove and set aside.
  4. Step 4: In the same skillet, add 1 finely chopped small onion and 1 minced garlic clove, sauté for 2-3 minutes until translucent and fragrant.
  5. Step 5: Add 2 diced medium zucchinis and cook for 4-5 minutes until tender. Stir in 1 cup canned crushed tomatoes and 1/4 cup chopped fresh basil. Simmer for 5 minutes until sauce thickens slightly.
  6. Step 6: Return meatballs to skillet, cover, and simmer in sauce for 8-10 minutes until meatballs are cooked through and cheese inside is melted. Serve hot.

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Frequently asked questions

How long does Cheese-Stuffed Meatballs with Zucchini Marinara take to make?

Total time is about 50 minutes (20 min prep + 30 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Cheese-Stuffed Meatballs with Zucchini Marinara?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep (85% lean) ground beef from drying out.

Can I substitute ingredients in Cheese-Stuffed Meatballs with Zucchini Marinara?

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 Meatballs with Zucchini Marinara 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 Meatballs with Zucchini Marinara keto?

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

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