HEAT oven 375°F.
COOK pasta as directed on package, omitting salt; drain. Place in large bowl.
RESERVE 1 Tbsp. Parmesan. Add remaining Parmesan to pasta with all remaining ingredients except mozzarella; mix lightly. Spoon into 8-inch square baking dish sprayed with cooking spray; top with mozzarella and reserved Parmesan.
BAKE 20 min. or until heated though.