Unrefrigerated healthy food?

My potheaded room mates eat all my fridge/freezer food. I'm moving in 2 months, but in the meantime I'm confined to Taco Bell and chips and cookies I have to hoard in my room, as using the kitchen at all serves no purpose. It feels disgusting, so I really need some help/ideas about what I can eat that will fulfill all of my dietary needs but not be junk. Any particular brand specific would be appreciated, I'm already calculating how long variations of fruits would last, but any input at all!