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. Sprinkle with crumb mixture.
BAKE 15 to 20 min. or until topping is lightly browned and apples are tender. Serve warm. Refrigerate leftovers.