Not a lot of advice for you-- honestly, DD's allergies are such that (knowing what we know about college campuses, dorm environs, etc) there is just no way that we'll do it.
She might eventually transition to off-campus housing, but she has to be able to keep her own food safe, and she has to be able to prepare food for herself.
Anyway. Identifying yourself to disability services on campus is the first step-- I take it that you've done that, yes? If you press, can you get permission for other appliances (maybe an induction hot-plate?) for her? Honestly, she's going to HAVE to be flexible enough to realize that her
college experience may not be identical to that of her unaffected peers. That's simply the way that it is.
She's not alone in not getting "the" college experience that she imagined, by any means-- but taking risks with your management strategy in order to live more normally.... hmm.... there's a limit to what is wise there, yeah?
There's a lot more to being ready to fly than wanting
to live away from home for our kids. Unfortunately. Being truly
ready also means being mature enough to accept that you have to compromise on what you want
so that it's feasible in light of the very real limitations on your food safety, KWIM?
That means not eating in a high-risk setting 2 or 3 meals a day for four years, at least if you're someone with a low reaction threshold.
I'm happy that my DD hasn't really fought this all that much-- she packs food rather than planning to purchase lunch (generally has a back-up plan even if she does plan to purchase something that she's scoped ahead of time), and seems to accept that this is just her lot in life. It sounds like your DD isn't accepting that she may HAVE to live in a single-- maybe that is just the impression that I'm getting.
I get some of this is lack of experience, too; my DD doesn't understand how food-oriented a lot of sorority affairs are, and has it in her mind that she'd like to go through Rush. I'm not telling her "no" but I'm also not really encouraging it, either.
I feel for you. It is