There are literally restaurants that focus entirely on a single ingredient, like eel for example.
Today, eel Pie Island is home to a mellower bunch: retirees, artists, and the like.
These are just a few of the famous visitors to eel Pie Island, a centuries-old refuge for musicians, hippies, and writers.
Old English æl, from Proto-Germanic *ælaz (cf. Old Frisian -el, Middle Dutch ael, Dutch aal, Old Saxon and Old High German al, German Aal, Old Norse all), of unknown origin, with no certain cognates outside Germanic. Used figuratively for slipperiness from at least 1520s.