Freeze-dried meats and vegetables! There are a number of vendors. I've bought from thrivelife.com and found their stuff to be quality. Freeze-dried food is never as good as fresh stuff, but it will meet your nutritional needs. You will need a good source of water, though.

Hikermor's comment reminded me of a book I read -- Richard Wrangham's Catching Fire, which is partly a response to raw foodists who justified the raw diet as the type we have evolved to eat. His objections came from evolutionary biology. It's a very good book on the role of fire and cooking in human evolution, and I enjoyed it very much.