1 box yellow cake mix
2 29-oz cans sliced peaches
1/2 C tapioca
8 oz can crushed pineapple
1 C brown sugar
1 stick butter
Put peaches with juice/syrup in dutch oven, mix in pineapple with juice and tapioca. Top with dry cake mix, do not stir into the fruit. Sprinkle brown sugar on top, and cut the stick of butter into pats and spread over the top. Bake like normal cobbler with top and bottom heat.
With high sugar foods like this, I like to line the dutch oven with aluminum foil to make cleanup easier.