I'm eating some right now as I type this. Good ol' "Dump Cake". That's what the Boy Scouts call it. If you are using charcoal briquets , use 15 on the bottom and 10 on the top. Takes about an hour. I put all the charcoal on top the last 10 minutes or so. Gets a nice crust that way.
Try applesauce, fruit cocktail, canned apples,and pineapple too.Cherries and chocolate cake mix works fine too if you are a choco fan.