Hi MissMagenta! It looks like you've got a good start with what you have available. I understand the whole college thing...I'm just getting out of it myself. What I am finding is that I need to experiment substituting stuff. As for cooking oils, if you have access to a Costco or something like that, you can stock up on EVOO (extra virgin olive oil) for relatively inexpensive - or you could just stick to butter for your cooking fat.
Another thing, if it's near you, Wal Mart is your best friend. Yeah I know it's the bane of all evil, but when you're in college and need to save money, it is your best friend. They even have some organic produce.
You could even try finding a local food bank (although they might try to push a lot of grainy stuff on you).
So that's what I have to offer, sorry I'm not much help in the recipe department.