Duke Street, Liverpool: Joe's Restaurant.

Joe's Restaurant (or Joe's Caff, as it was known), was one of those pivotal places. Being both centrally situated and open late (10pm to 4am), the Beatles and many others naturally gravitated here following an evening's shenanigans. This was where Brian would sometimes meet his "boys" post-dispiriting-trudge-round-London-record-companies (here too where John made his "Right Brian, try Embassy" quip).
Nothing much remains, o'course, the caff having long since been re-converted into a conventional terraced house.
Back in the day, though, curry and jelly were John's scran o' choice from the menu, and featured as such in an early questionnaire:

Also not quite true to say that nothing whatsoever endures: close inspection of the vintage pic reveals the shop sign for P.F Garnett and Co. Ltd., a couple of doors down, hanging still:

Lots of the old Liverpool may have gone, but here and there, remarkably, etc:

A doff o' the cap to Mr Lewisohn's bewk for enlightenment.