HEAT oven to 400°F. Mix cream cheese spread and wafer crumbs with fork until mixture resembles coarse crumbs. (Do not overmix.)
TOSS apples with sugar and cinnamon. Spoon into 1-1/2-qt. casserole dish; sprinkle with crumb mixture.
BAKE 15 to 20 min. or until topping is lightly browned and apples are tender. Serve warm. Refrigerate leftovers.