I carry a couple Miso soup packets in my GHB not necessarily as survival "food" but as a moral booster and warmth inducing drink. Completely sealed so won't get moist like some of the older bullion cubes. I've got a couple Via packets as well both cold and hot coffee.
Great idea!
Side note: I used to love Miso soup, until I got pregnant the first time. I haven't been able to stomach it since, but my kids are a great trade-off.
(Pregnancy does weird things to women's bodies so have patience guys. LOL!)
Knorr makes a variety of just add water soups that are pretty tasty and only slightly larger than a package of hot chocolate. Creamy Potato and Cream of Leek are my faves, and my kids really like the chicken noodle - though they complain that there aren't enough noodles, which they always do. LOL! Minestrone is in third place.
I'm always looking in the ethnic foods section at the grocery store and Wal-mart. We're also lucky enough to have an Asian food market around the corner. Great selection of un-traditional stuff (read that as "not the same old boring thing") and lots of light-weight easy to make beside the trail stuff.
Kinda side note: I recently tried the new Knorr concentrated liquid stock cubes. They are wet instead of dry, so a puncture is a little more problematic if you don't plan for it and pack wisely, but REALLY good!! I just wish they could package it differently, like Justin's Peanut Butter squeeze packs, which we can't here either.