Cheese-Stuffed Meatballs with Spinach and Tomato Sauce

By AislePrompt Editorial · Published 2026-06-10 · Updated 2026-06-10

Tender keto meatballs stuffed with melted cheese simmer gently in a rich spinach and tomato sauce, perfect for a comforting low-carb meal. This Italian-inspired keto recipe (low carb, gluten free), ready in about 45 minutes, pairs ground beef, mozzarella cheese, spinach 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 low-carb week and pairs well with cauliflower rice or roasted green vegetables. 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.

Ingredients

• 1 lb ground beef
• 4 oz, cut into 1/2-inch cubes mozzarella cheese
• 3 cups fresh, chopped spinach
• 14 oz canned diced tomatoes
• 1/4 cup grated parmesan cheese
• 1 large egg
• 1/4 cup almond flour
• 3, minced garlic cloves
• 3 tbsp olive oil
• 1 1/2 tsp salt
• 1 tsp black pepper
• 1 tsp dried oregano

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Instructions

1. Step 1: Preheat oven to 400°F. In a large bowl, combine 1 lb ground beef, 1 large egg, 1/4 cup almond flour, 1 tsp dried oregano, 1 tsp salt, and 1/2 tsp black pepper. Mix gently until just combined.
2. Step 2: Form mixture into 12 equal meatballs (about 2 oz each). Press a 1/2-inch cube of mozzarella cheese into the center of each meatball, sealing the meat around the cheese completely.
3. Step 3: Heat 2 tbsp olive oil in a large oven-safe skillet over medium-high heat. Add meatballs and sear on all sides for 2-3 minutes until browned but not cooked through. Remove meatballs and set aside.
4. Step 4: In the same skillet, add remaining 1 tbsp olive oil and 3 minced garlic cloves. Sauté for 30 seconds until fragrant.
5. Step 5: Add 14 oz canned diced tomatoes (with juices) and 3 cups chopped fresh spinach to the skillet. Stir and cook for 3-4 minutes until spinach wilts and sauce thickens slightly.
6. Step 6: Return meatballs to the skillet, spooning some sauce over them. Sprinkle 1/4 cup grated parmesan cheese on top.
7. Step 7: Transfer skillet to the preheated oven and bake uncovered for 15 minutes until meatballs are cooked through and cheese inside is melted.
8. Step 8: Serve hot, spooning extra tomato spinach sauce over meatballs.