Mozzarella Stuffed Meatballs in Homemade Tomato Sauce

Bahan-bahan (24 porsi)

• 2 pounds lean ground beef (or turkey)
• 1 tablespoon olive oil (if using turkey)
• ½ onion (finely chopped)
• 1 egg
• ½ cup Panko bread crumbs
• ½ cup shredded Parmesan cheese
• ¼ cup chopped fresh parsley (or 1 tablespoon dried parsley)
• 2 tablespoons chopped fresh basil (or 1 teaspoon dried basil)
• 2 teaspoons black pepper
• 12 ounces fresh mozzarella cheese (cut into 24 cubes)
• 1 onion (diced)
• 4 cloves garlic (minced)
• 2 tablespoons olive oil
• 1 (28 ounce each) can whole tomatoes (with juices)
• 1 (28 ounce each) can diced tomatoes (with juices)
• ½ teaspoon granulated sugar
• 1 bay leaf
• 1 (6 ounce each) can tomato paste
• 2 tablespoons chopped fresh parsley
• 1 teaspoon dried basil
• ½ teaspoon black pepper
• 1 lemon (for zest only)