Just up the street, Tai Thai Restaurant always seems to have a crowd gathering for its stir-fries and steamed fish in a casual, lively set-up. Nearby On's is a friendly spot that serves cheap and hearty vegetarian Thai in a cute, intimate setup. On also runs a cooking school, and when we dropped by her students were happily helping her to cook and take orders from guests -- we thought it was brilliant that they were paying to essentially work as her staff for the night! Another option for a tasty vegetarian lunch is the small traditional Thai-Chinese style vegan shop around the corner from Maenam Kwai Road near Nirvana Guesthouse (look for the yellow flags and a sign that says "vegetarian food"), where you can sample as many types of stir-fries, curries and meat substitutes as you like, all piled high on a mound of rice for dirt cheap prices.