Pour sauce into 9x13 inch baking dish. Carefully stir in 4 tablespoons of the Parmesan cheese. Add chicken; turn chicken to evenly coat both sides with sauce. Cover with foil. Bake 30 minutes.
Uncover and top with mozzarella cheese and remaining Parmesan cheese. Continue baking 5 minutes or until chicken is thoroughly cooked and cheese is melted.
Serve over hot cooked pasta or rice, if desired.