Preheat oven to 350°F.
In a large bowl, slightly beat 1 egg. add cake mix and butter; stir until well blended.
Press mixture into a greased and floured 9 x 13 - inch glass baking dish.
In a medium bowl, combine confectioners sugar, cream cheese, and remaining 2 eggs; pour over cake mixture.
Spread pie filling over cream cheese mixture.
Bake 30 - 40 minutes or until outer edges are lightly browned and center is almost set. Cool completely.
Cover and store in refrigerator. Serve at room temperature.