I had an opportunity to try all-vegan buffet at Pine Forest Garden Restaurant 松柏園素菜館 in February and I was very satisfied. I came with my vegan friends for the first time.
I like the way it was setup. layout of buffet line. One side of buffet closer to the rice etc are all vegetable dishes - no fooling of my eyes of what they are. I liked vegetarian dumplings, vegetable egg rolls and simple stir fried vegetables.
But the opposite side is mostly impostors - common food made of vegetables. I liked vegetarian burgers (meat colored vegetables sandwiched by 2 slices of sesame bread) and vegetarian chicken (wheat gluten shaped like soy sauce chicken truly fooled my eyes and taste buds).
Besides buffet at lunch and dinner, you can order dishes from the kitchen. This made a fantastic idea for takeouts during the temporary restriction the restaurants by the government officials due to CoVid19 concerns.