We usually buy the mountain house meals for our backcountry expeditions. I lived off them for a 30 day no resupply trip, they do start to do some funky things to your internals after that long, but nothing too bad. Dehydrated potatos and gravy packets that you just add water to work great also, especially if you take a few cans of chicken to mix into the gravy. The Tuna pouches make for good protein in a light compact package also. The military style self heating mre's are too heavy and bulky for what I would pack, though for just a couple day trip they work, I always feel like I am opening a x-mas present with them since there is so much stuff inside of one.