1 1/4 pounds ground turkey breast 3/4 cup plain bread crumbs 1 (1-ounce) package dry ranch dressing 1/4 cup water 1 egg, lightly beaten 1/2 teaspoon garlic powder 1/2 teaspoon black pepper 4 (1-ounce) mozzarella sticks, cut into 20 cubes 1 (26-ounce) jar spaghetti sauce 1/4 cup shredded carrots 1/4 cup thin celery slices 1 pound spaghetti, cooked according to package directions (keep warm) cooking spray
Preheat oven to 350°F. Coat a baking sheet with cooking spray.
In a large bowl, combine turkey, bread crumbs, dry ranch dressing, water, egg, garlic powder, and black pepper; mix well. Divide mixture into 20 meatballs, then form each meatball around a mozzarella cube, making sure to cover cheese completely. Place on prepared baking sheet.
Bake 15 to 20 minutes, or until no longer pink in center.
Meanwhile, in a large pot, heat spaghetti sauce, carrots, and celery over medium-low heat 10 to 15 minutes, or until veggies are tender. Add meatballs; stir until evenly coated.
Place warm pasta on a large serving platter and place sauce and meatballs on top. Serve immediately.