We were looking for this restaurant in Dong Da Zhi Street 5, but could not find any restaurant in number 5 (or in other parts of the street either). When we asked people at the entrance of Kek Lok Si Temple they guided us to the second floor of white two-storied building just beside the Kek lok si Temple. This building is Dong Da Zhi Street 11. And it is as close to the temple as possible.
We did not see any name of the vegetarian restaurant outside of the building, but inside in 1st floor they were selling some vegetarian food items (noodles, fake meat products) and in 2nd floor there was a vegetarian restaurant. We ate very tasty vegetarian meal there: spicy eggplant, tofu in red sauce and broccoli with Chinese mushrooms. Everything was really tasty. They do not have English language menu or pictures in the menu, just names of the dishes in Chinese characters, but the service was friendly and you can trust that everything is vegetarian as it is a Buddhist restaurant. They have also fake-meat dishes.
On the walls of the restaurant they have nice Buddhist themed images that show kindness towards animals.Pros: Tasty food, Nice Buddhist themes, Very close to the Kek lok si temple
Cons: Difficult to find the right building, No English menu