Have you tried oopsie rolls?
http://www.marksdailyapple.com/forum/thread83254.html
My sister is coeliac. These are ok, at least it feels as if you have a burger in a bun or a bacon sandwich so OH is fine about eating with her.
Bone and gum graft dental treatment
People eating and drinking on the go
To think that London, or anywhere else for that matter, does not belong to any one demographic