HEAT oven to 350°F.
MIX crushed crackers, Parmesan and 1/4 cup shredded cheese.
PREPARE Dinner as directed on package. Stir in turkey, corn and remaining shredded cheese. Spoon into 1-1/2-qt. baking dish sprayed with cooking spray. Top with cracker mixture.
BAKE 10 min. or until heated through and topping is golden.