I wanted to share my experience, as an autistic woman who went to uni, but autism has different ways of presenting itself, so if this doesn’t resonate with you and your daughter, please feel free to ignore :)
I found house sharing horrendous. Not the kitchen specifically, but generally living with other people. Like many autistic people (particularly women) I am capable of acting broadly “normal” around other people, but after a while I feel an intense need to unmask, which for me means spending time alone doing a solo activity such as reading, painting, music, or playing a computer game.
At uni I couldn’t do this. Nobody in my house ever spent time alone. They were always in the kitchen or in each other’s rooms, so I felt an intense dissonance between wanting to fit in and be like them, and needing to spend time alone. The more time I spent alone, the more they thought I was an unsociable weirdo. The less time I spent alone, the more I acted like a weirdo as I wasn’t able to recharge my ability to mask. Either way, my relationship with my housemates got less and less pleasant as the year went on.
Second and third year was better as I was in a calmer, quieter, group but still, they were always hanging out together in the communal space, and it caused friction that I was unable to do that without my autism symptoms becoming more apparent.
Long story short - if your daughter is like me and needs alone time in order to recharge her ability to successfully socialise, she is probably going to find house sharing tough. I would see how she is when she comes home for Christmas. If she is reluctant to socialise with you as much as normal and seems keen to retreat to her own space as much as possible, it is a sign she may be struggling more than she says, and you may want to encourage her to live alone or with others who are happy to chill in their rooms and not always be together. It sounds like she wants the authentic uni experience, living in mixed sex halls, but honestly it might not be the best thing for her, and that’s ok.
As for the kitchen situation I think it’s normal for them to be gross. 8 people can’t share a tiny kitchen and keep it tidy, that’s just physics. Sandwiches and ready meals are the way forward, sadly.