The current description of this restaurant is incorrect. The prices are moderate to expensive by local standards. Dishes are in the range of about 40 yuan ($7 US). Portions are large and you get excellent tea, bread, soup with the meal. The food is definitely not fast food. It is Chinese gourmet vegetarian. That is, it is reasonably delicate; not spicy or greasy. I had a dish with firm tofu, mushroom, broccoli, carrot, and pine nuts in a light sauce. The whole meal was excellent. The menu is all Chinese, but there is a picture of every dish so ordering should be no problem. The dining area is large, clean, and bright. The staff is very friendly. There were a number of Buddhist monks eating there. There is a health food store next to the restaurant. The restaurant has the English name Sino-Agriculture.
The restaurant is on the second floor of the Xingjie Building which is located on the Northwest corner of the intersection of Longjing Street and Wuyi Road (this building does appear on Google Maps). The entrance is behind the building, so go around to the back. You will see an entrance with elevators. The elevators would not take me to the second floor. There is a stairway to the left of the elevators that will take you up. The stairway is dingy, but when you get up there, the second floor looks perfectly nice. Go to the left and you will enter the restaurant. As you walk towards the restaurant, you will see the health food store on the right.
If you need more help finding the place, it is one block East of the Yunnan Art Theater where the Kunming extravaganza is performed every night. The number 5 bus, and many other buses stop at the intersection of Dongfengdong Lu and Longjing Street. It's not far from the Provincial Museum and the Bird and Flower Market. I have been told that they have a buffet on Saturdays and Sundays between noon and 1:30PM, but I can't confirm this.
Cons: a bit hard to find, a bit pricey for Kunming