Gaye
Where we lived in Somerset there was a local "deli" that sold items such as Feta,Olive,whitebait etc. Lidl's in Corfu Town sell it vacuum packed so, maybe, if you have store nearby, you could try them. Or local large supermarket?
Sorry , not much help, ( It's pronounced "loukaniko" I think but I can't find the icon on the keyboard to type how it reads in Greek)
Negg