Sardines, singular σαρδέλα. One of the cheapest and most popular fish in Greece (actually they are generally a mix of small pilchards and other young fish). They are very tasty, as a meze or stuffed and grilled (as my father in the photo will attest!).
Lesvos is famous for its σαρδέλες παστελες (sardeles pasteles): small sardines de-boned, salted and eaten raw, or with lemon and oil.
Images by Dana Facaros, lesvosnews