This is all interesting on a hypothetical level, but my challenge is for each of us to discover such a working restaurant, which would satisfy people of both religions, with moderate religious dining requirements.

Easier said than done, but resourceful and well-travelled diners should read, hear or see such a place.

Here's a tip: somewhere great with fish - how religiously tolerant.
(Technically borderline cheating the hard stuff, IMO! To keep it challenging, no fast food 'restaurants', OK )