Religious Travelers Forum has a LHR/London Kosher dining thread.

Do you know if a restaurant exists anywhere in the world, which can serve both kosher and halal meals? I would have thought London would have been the place, after Israel, which would seem to be the place to start looking.
[This is the only location I can think of which could have a market segment, but I hope there are other places. Locally, I think dining for kosher & halal is probably 20-45mins driving to different precincts in Sydney & Melbourne]

I'm not talking about ones which technically get through the easier way, e.g. vegetarian places which may not need certification. I'm thinking ones which can genuinely offer the real deal.

How about in the US? It's quite a feat as there's not necessarily a big market for it, but I would imagine it is technically possible to have suppliers and staff who could pull it off.

Surely amongst FTers there are some diners who have sought one or the other - and found restaurants that can do both?

(I'm not bothered either way, but wondered if it has been done successfully)