[tacheiordache]

Similarly in Romania, though it is not a pie, "Mancare de Urzici" some kidn of mash, young nettles are boiled, puréed and cooked into a sort of spinach-like mash. I remember my grandmother preparing this quite often during the warm months.

[BowBun]

Sounds a lot like "Stoemp", from Belgium. Spinach and carrot are classic, but any veggie works. Funny how very similar dishes can be found across the world under different names.

[tsimionescu]

I think this is is still somewhat common, though it's definitely a home-only meal. You still find fresh nettles for sale in markets in Bucharest every spring. I for one hate the smell and taste, but my parents and grandma eat some every year.