Dehydrating your own meals for your back pack. Wood Trekker has some great ideas for tasty DIY dehydrated food for packing. Ultra lightweight, cheap, keeps for long periods, and easy to rehydrate for quick meals while camping. I've even dehydrated my own stroganoff (with ground beef and egg noodles), vacuum-sealed it, and packed it in my pack. Weeks later, we cooked it on our alcohol stoves and it rehydrated well, was creamy, and tasted like it did the day I made it.