Eating well in a dorm.

A lot of people love ramen, and it's just about the cheapest food on the planet.

If you get the stuff in a cup, you can usually just microwave some water and put it inside.

From personal experience though, unless the food at the cafeteria is TERRIBLE, I'd recommend eating there and using the fridge/microwave for small snacks when it's closed. My typical fridge was mostly filled with coke and various juices, and I usually had some kind of finger foods for midnight stuff.

Jam it back in, in the dark.