Agree that cous cous is a good one, particularly the type that you cook inside the packet for 1 minute in boiling water. Most of my suppers consist of pasta /cous-cous / quick-cooking rice, with some sort of sauce usually mixed in whilst cooking, with biltong / tuna / salami. Of course, two-minute noodles seem to be an unbeatable classic in terms of price, weight and ease of cooking!
Some of the better, but weightier, suppers which I may occasionally bring along are 1) pasta with tuna and Ina Paarman's basil pesto, and 2) cous cous with sundried tomatoes in vinegar, salami and fresh green pepper.
Currently my lunches tend to be a barrage of dried fruits and nuts, with bars. Anyone had that roasted corn, coated with salt and vinegar? Thats a winner with me.
I've found that my preferences shift over time as I get tired of certain things, or as I get increasingly weight conscious, and reluctant to wash more dishes than I have to in icy waters of the winter. I have less of a need for fancy food now, and find that almost all food tastes good to me in the mountains!
Whiskey or brandy is awesome - only need to take a little bit, which goes a long way!