Preheat oven to 350°F. In ... spread the crushed pineapple, then spread the apple pie filling, then sprinkle the yellow ... 50 minutes, uncovered. Easy!
Spread pie filling in 9"x12" baking dish. Pour in pineapple with its juice. Spread evenly, but don't mix the apple and pineapple. Crumble cake mix ... warm. Ice cream, optional.