This is a recipe I got off of my old roomate. It's easy, pretty cheap and tastes great!
1 can of pie cherries, any one you like
1 can of crushed or diced pineapples
1 box of yellow cake mix
1/2 lb of butter
In a large glass pan mix in the pineapple and cherries. Pour the dry cake mix on top, spread to cover fruit. With the butter softened cut into chunks and spread over the cake mix. Put into a 350 degree oven and cook for 45-60 minutes till butter is melted and cake is golden brown.
If this doesnt work, let me know as I was just going off of memory
. Its been a few months since I have actually made it, but it's a big hit with the monsters, and everybody else that has ever tried it.