Things change quickly here; places close, new ones open and the longer you stay the more you will discover. It’s difficult to keep completely up to date, but the following are recommended:
This map is not mine, but it’s a great resource.
View 2014 Chiang Mai vegetarian restaurants in a larger map
Cheap food places in Chiang Mai
Map not maintained by me – mostly around 50 Bht
View Chiang Mai Eats in a larger map