Mozzarella Stuffed Turkey Pesto Meatballs

Name: Mozzarella Stuffed Turkey Pesto Meatballs
Ingredients: 1 can (14.5oz per can) diced tomatoes (undrained); 1 lb 93% lean ground turkey; 1 large egg; 1/2 cup pesto (store-bought or homemade); 1/2 cup Italian-seasoned breadcrumbs; 1/4 cup grated Parmesan cheese; 5 mozzarella string cheese sticks (cut into 4 pieces each); 4 oz shredded mozzarella cheese (8oz = 2 cups)