During our recent trip to Greece I was continually served Tszatiki (sp?) which I have all the time as a dip with pita bread here in Canada. I was coninually asking for Hummus (hummous) and the Greeks couldn't figure out what I was asking for! Finally, I got some one that spoke English and explained it was a dip made from chickpeas, olive oil and either lemon or lime and they knew what I was talking about. They said it is either Egyptian or Turkish but is never served in Greece unless it is peculiar to one of the islands.
Dean in Canada