Pour pie filling into a greased 13x9-in. baking dish. Bake at 350° for 5-7 minutes or until heated through. , Meanwhile, in a small bowl, cream butter and cream cheese until light and fluffy. Beat in vanilla. , Place cake mixes in a large bowl; cut in cream cheese mixture until crumbly. Sprinkle over hot filling. Bake 25-30 minutes longer or until topping is golden brown.