Hmm. Youre in a pickle . Well, I know one thing you can take, is tuna. It comes in pouches now, so all you have to do is open it. No draining and it doesnt require refridgeration. And, I know you can probebly get mayo or mustard from a line. If tuna isnt your thing.. hmm.. bring some nuts and pork rinds . Are you using a lunch box? if not, invest in one. it'll be your best friend . Are you in access to a microwave? if you are, take some of those ready made bacon strips and have that. I always get a salad at lunch and before I started getting salads, i didnt eat during school.. (that was a mistake.. dont do that! )