I'm a vegetarian which is hardly a problem in Chiang Mai but sometimes it can be very nice to be able to choose anything from the menu. Fortunately there are a lot of all vegetarian restaurants here as well. Khun Churn on Nimmanhaemin Soi 17 is a really nice one. During lunch they offer a huge buffé whit a lot to choose from. However I prefer visiting at the evening when it is less crowded and you can order vegetarian Kah Soy noodles!