Not sure what the dorm allows, but if able, I would buy her a
freezer like this. We have the same one in our camper and it really comes in handy as the one on top the small fridge in our camper barely holds anything.
We pre-cook and freeze most meals when we camp at Disney. Definitely cook everything before freezing, and Ziploc into individual size portions for a college student. Almost anything can be frozen after it's prepared, then microwaved when needed. There are only a handful of foods that don't freeze well.
I agree with the others that said shrimp would be too smelly. As yummy as it is, any seafood is going to stink up the place.
Taco meat is a standard for us. It can be heated up to put on a taco salad, in a tortilla shell, or crunchy taco shell. Just have her keep shredded cheese in her fridge. We also make both beef and chicken enchiladas, and freeze them individually, for our Disney trips.
We also grill a bunch of hamburgers at home and freeze those. Just pop in the microwave and add whatever you like to it. I don't like having to deal with any mess while on vacation, but still want that grilled taste.
Marinated chicken breasts or tenderloins also freeze and heat well. Very tasty when reheated.
Lasagna, spaghetti, stuffed shells ... all do well. Since she can't have a crock pot, maybe make her favorites in the crock pot at home and freeze in portion sized bags. I have done this with roast w/potatoes, carrots, and onions and it reheated well.
I would personally avoid making and freezing soup since that is something that can be purchased canned and save freezer space. May not be homemade, but there are some very good ones out there.