The Cheese Trader in York is a hidden gem that sells all kinds of cheese. They have a street food menu that you can sit in and eat or take aeat. It's only a small menu and a tiny kitchen but their halloumi fries and loaded dirty fries are delicious and fully gluten free.
The guy who works there is lovely and doesn't palm you off with the 'we can't guarantee no traces' line, he tries hard to cater for you. Everything else on the menu can be done gluten free if you bring bread with you (they're only a tiny place with a tiny kitchen so don't do gf bread).
Absolutely delicious food and worth visiting if you're a cheese fan!
— Very
— No gluten-free information on the menu
— Some
— Excellent