[recycled sixtie]

I have done food as simple as bread buns, peanut butter and apples. More deluxe backpacking carrying a stove I have bought freeze dried spaghetti sauce and noodles. Also east indian dried food. You obviously need water and a portable stove.
Lots of freeze dried packs at camping stores. Dried eggs. Anything in cans tends to be too heavy.

A neighbor I hiked/backpacked with a few years ago had deer meat and moose meat. Of course unrefrigerated for a long time can be risky. I keep it simple. Apples, nuts, buns, freeze dried foods.