What can I replace pineapple with in a cherry dump cake? I would like to make a cherry dump cake, but some kids are allergic to pineapple. What can I replace it with?

The recipe I am working with is:


  
  1 (20 oz.) can crushed pineapple with juice, undrained 
  1 cup chopped pecans or walnuts 
  ½ cup (1 stick) butter or margarine 
  1 can Duncan Hines Comstock® Country Cherry 
  or 1 can Duncan Hines Comstock® Simply Cherry Pie Filling Topping 
  1 package Classic Yellow Cake Mix
  
  
  Preheat oven to 350ºF. Grease a 13"x 9" pan. Dump pineapple with juice
  into pan. Spread evenly. Dump in pie filling. Sprinkle cake mix evenly
  over cherry layer. Sprinkle pecans over cake mix. Dot with butter.
  Bake 50 minutes or until top is lightly browned. Serve warm or at room
  temperature
Any canned Apple Pie Filling (such as the Duncan Hines) would provide a similar flavor and texture to the pineapple you want to replace. You might want to mix in some apple juice (or cider) to the apple pie filling to thin out the liquid in order to get the right consistency and volume. 

Of course you will want to make sure you aren't simply replacing one allergen with another.