Spaghetti with Mozzarella-Stuffed Meatballs Recipe | Say Mmm

Ingredients

• 1/4 cup plain bread crumbs
• 1/2 cup milk or water
• 1 tablespoon extra-virgin olive oil
• 3 garlic cloves, 2 smashed and 1 chopped
• 2 28 ounce cans crushed tomatoes
• Salt
• 1 pound lean ground sirloin
• 2 tablespoons chopped flat-leaf parsley
• 1/2 cup freshly grated Parmigiano-Reggiano cheese, plus more for serving
• 1 large egg
• 4 ounces cheese, cut into 20 (1 / 2 inch) cubes
• 1 pound spaghetti