(Oh, lordy; here I go again. Mess kits. Can't...... help....... it.......)
Try a West German surplus 3-piece mess kit. Too big for a small bag, but great for your backpack. It's my main cook kit/plate/fry/pan/drinking cup. Make sure you make a windscreen for it, or you will wait a looooooooong time for water to boil. We're talking years, here. You can pack this thing with oodles of cooking/survival goodies.
And be careful - the old East German kit looks similar, but is REALLY dinky (think aluminum foil with an attitude). You can tell the difference right off because the East German one has no loops in the handle for the mess kit strap, and is usually a much lighter green. Also, the internal cup/pan has a wire handle. The West German one does not.
Hope this helps,
.....CLIFF