I found this restaurant (thanks to HappyCow) when I attended job training in Prague. Unfortunately, there wasn´t any vegan option in that damn hotel so I had to find something during a lunch break.
The restaurant is situated in huge "office zone" (is that an English word?), in Brumlovka building.
The interior is very spacious so it serves its purpose - to feed many people. I was there during the lunch so there were two options:
1) to get the whole menu of your choice (warm or cold-raw) with every kind of food for one price. This one is served by a cook.
2)to get the kind of food of your choice, the amount you want etc. This one costs 30CZK(1€)/100 grams.
I chose the second option because the restaurant is vegetarian, so I picked only a vegan food (vegan food took about 1/3 of all food).
The food was delicious, the cuisine was indian and tasty as I like it. Even if they are only vegetarian restaurant they use mostly organic ingredients (eggs also) and dairy products of proven contructor from Greece.