"Some good ideas. Do lunchables really last. I thought they were perishable. Tuna packs, instant oatmeal, mash potatoes and ramen noodles. I am trying to make my own dehydrated meals."
I would suggest bringing along a couple of MREs or something similar. They're a bit heavier, but you can strip them down, get the cardboard and anything you don't out, then tape them back up.
I actually bring one for each day, strip them, stuff the other food I have for that day (tuna, oatmeal packets, some coffe, etc) into the bag and then tape it up. Makes a nice little food packet for each day.
Reason I say to bring a couple is because they're pre-hydrated, have a lot of calories, don't have to be heated and are designed to be edible right down to freezing temps.
If you can't or don't want to use your stove for some reason (broken, weather, low/out of fuel, etc) you can still get at least one full meal in.