Originally Posted by clasher

Lentils are an easy, cheap and nutritious meal. Onions are cheap and tasty, the dehydrated ones are cheap enough if you want to save some weight/space. Textured vegetable protein is another cheap staple that is versatile. Wikipedia says not to eat lentils raw though, but you can make a small pop-can stove pretty cheap so I think I'll pile-on with the 'you should cook' suggestion too