This place used to be known as Vegetus, and the new name is Vegasaly.
You pay first at the cash register, then take any seat in the dining room. Give your receipt to the food server and they will bring you the meal of the day. The day I went, there was a bowl of soup, and small portions of 6 different items, plus a juice drink. There is a thermos of tea on the table. The meal of the day was 8.000 as of January 2014.
The food and presentation was novel, and all the flavors were great. I would definitely go here again... warmly recommended.