GF grill is a solid idea.
Also, get a rice cooker. Can make a lot of stuff in it in bulk.
Being in college you may not have a ton on money. But the best bang for your buck are going to be BB'ing staples, like chicken, beef, eggs, rice, potatoes, etc.
I'm an RA, so luckily no one disciplines me for having 2 fridges and some other 'off limits' things, but buy in bulk as much as you can, and realize you may have to take some time to cook and stuff, which is neither convenient nor the norm for most kids out age. So just prepare for that. lol