One 1.5 liter aluminum pot. Some liquid fuel stove. Some broiler foil for a windscreen. I almost bought an Optimus Nova for my last tour, but decided it wasn't enough better than my old Svea 123. Whisperlight are good, too. You don't really need a whole cookset. Buy a plastic bowl and a plastic cup with graduations at the grocery store, the kind with the sort of slimy feel to them. They clean really easily and don't seem to have a lifespan. You'll need a Lexan spatula, fork, and spoon. You can use the blade in your Leatherman for the knife. They make plastic tops that turn 35mm film containers into salt and pepper shakers. They're perfect. I have another one with Bon Ami in it. You'll need a small squeeze bottle for soap - hands, shower, and dishes, and a combi sponge/scrubber.
Never fry anything.