I don‘t know why but Eisenach, Germany has a high density of Greek restaurants. The restaurant Delphi is located in the city center opposite to the Theaterplatz. They serve the well-known traditional Greek dishes in very good quality and a nice atmosphere.
At the restaurant Delphi you get an Ouzo spirit before you get your meal – as it is typically done in Greece (and not afterwards like throughout most restaurants in Germany). I always see that as a sign of quality and a very traditional restaurant. If you get inside don’t worry that it might be too small – there is another room in the back.