1 (26 oz.) jar spaghetti sauce
6 tbsp. Kraft 100% grated Parmesan cheese, divided
6 small boneless, skinless chicken breast halves
1 1/2 c. Kraft shredded Mozzarella cheese

Pour sauce into 13 x 9-inch baking dish. Carefully stir in 4 tablespoons of the Parmesan cheese. Add chicken; turn breasts over to coat both sides with sauce. Cover with foil.

Bake at 375°F for 30 minutes. Uncover. Top with Mozzarella cheese and remaining 2 tablespoons Parmesan cheese; continue baking 5 minutes or until chicken is cooked through and cheese is melted. Serve over hot cooked pasta, if desired.

Makes 6 servings.