Whatever you can prepare that's frozen will work. A lot of foods will keep for a day or two. AS a boyscout my mom used to make a meatloaf think with onions, potatoes on the side etc. a freeze it in aluminum foil. At camp,(winter camp), I would lay the whole thing in the fire until done. It was a decent first night meal. You can also carry a potatoe wrapped in foil and put it in a fire. Although heavy stuff. The Scoutmasters would cook duck on a spit over the fire. I don't build fires anymore and rely on freezerbags etc. I do like pancakes sometimes for breakfast if I'm spending a lot of time at camp. You don't have to eat glop. There are tons of decent things you can take in bags that only require hot water. One thing for sure. Your pack weight will lighten very quickly as you consume the first and or second day frozen foods.