We have the Burton Stove, used it alot when we were in T/T. Using it, I've cooked chicken and rice, roast, meatloaf, potatos, hot dogs etc.
We bought the liners for it, so cleanup was easy.
We also have what is called a "Snappy Heater Pouch" it's a glorified heating pad in a vinyl pouch, and heats can's of soup an such.
Found it about 4 years ago on the Werner website, but it's no longer available and i can't find it anyplace else. That thing was awesome!