We visited, for lunch for the first time since I became a diagnosed ceoliac, and I was blown away. I requested the allergen menu, which had clear labels. And when I told the server that I am coeliac, I felt confident that she understood - - as she made a note on her order pad. Mister D's is a bit famous for always offering free beautiful bread with mains, so I wasn't sure what to expect. They brought me a special corn muffin with my own pot of butter, which was incredibly good. I had the duck risotto and there were plenty of other gf options too. Perfect pick for special occasions.
Note: I didn't enquire about a toaster or fryer, so not sure if they offer those. Also, I am not an externally reactive coeliac, so I can't promise that I wasn't glutened.