I am Lithuania and dying to make national Lithuania food, called Cepelinai ( http://en.wikipedia.org/wiki/Cepelinai ). You can make it with meat or with curd . I am in love with the one with the curd. You have a lot of cheese, some yogurts, and quark but I cannot find anything similar to curd I am familiar with in Zurich or Dietikon. I even contacted some friends who lived in Switzerland in the past and they also failed to find curd. So I decided to try my luck in Swiss Forum .
The other way to get curd would be making one myself, but that requires quite a lot of milk. Probably would require milk from farmers, not the shop. It's so complicated
Sadly no where as far as I can tell. Fell in love with varska when I was in your home country a few years back. (Having a Hungarian grandmother grew up with curd cheese - amazing stuff!)
As you say, either make it yourself, or you can get Peynir at the Turkish shops, which is the closest you'll find.
Most are located in the Zürcher Oberland (probably the most beautiful landscape in the Kanton of Zürich, but unfortunately too far away from work for me to live there...)
Good luck with your cepelinai - tell us about the outcome.
Quark can be bought in three types (Mager-, Halbfett and Vollfett) in every supermarket. And for once it's rather cheap. I remember that my russian neighbour always bought the Magerquark, put it in to a kitchen cloth and hung it over a bowl overnight. Otherwise ist would have been to wet. She used it as filling for some kind of giant ravioli.
Shameless plug - come on the shopping tour in Zurich tomorrow morning and I'm sure we can dig up some samples...in particular, we should try the Turkish supermarket for fresh curd... Or the Indian for Paneer