Preheat oven to 350°. In a small bowl, combine flour and brown sugar; cut in butter until crumbly. Press into a well-greased 13x9-in. baking pan. Bake 15-18 minutes or until lightly browned., Meanwhile, in a large bowl, beat cream cheese, 1/2 cup sugar and vanilla until smooth. Add eggs; beat on low speed just until combined. Spread over crust., In a small bowl, toss apples with cinnamon, nutmeg and remaining sugar; spoon over cream cheese layer. In another bowl, mix flour, brown sugar and oats; cut in butter until crumbly. Sprinkle over apple layer., Bake 25-30 minutes or until filling is set. Drizzle with caramel topping; cool in pan on a wire rack 1 hour. Refrigerate at least 2 hours. Cut into bars.