Cheap lunches?

Cheap lunches?

Does anyone have any suggestions for relatively cheap, easy to make in "bulk", cold recipes that I can take to lunch at school? I'm really sandwiched out at this point, and I fear the microwaves on campus. They're scary. I did make some cold pasta salad, but I don't want to take in so many carbs all the time. I'm open to pretty much anything that's tastey, but they must be beef and pork free.
Intro and HELP!?!

Intro and HELP!?!

Late July Garden, Zone 7

Late July Garden, Zone 7

Wall-mounting ceramic tiles.

Wall-mounting ceramic tiles.

Mystery vine, again

Mystery vine, again

Tree Ident

Tree Ident

Tulips

Tulips