"Η σούπα είναι πράσινη."

Translation: The soup is green.

[bruno_sprak]

Eww!

[JanuszWoro3]

Split pea soup ?

[JanetOlson3]

That's what I thought of.

[FranciscoA332796]

Spinach soup.

[GreekGeek93]

I just thought of some cauldron with a green potion.

[zambak0800]

My first thought was palak paneer, which is neither a soup nor from Greece. Are there any famous green soups in Greece?

[D_..]

No 'famous' green soups but you can always make zucchini/courgette soup and it will be green. Someone suggested spinach, I don't know if that's possible, but sure, why not?