I tried 3 veggie restaurants when I was in town, and this was my favorite. Low price for such good food. First they bring you a bowl of soup, then the main plate with 5 or 6 items on it. Very tasty, and they have brown rice. Located in a nice neighborhood with lots of stores and shops around. Just sit down at any available table, and they will bring you the meal of the day. There's no separate menu to order from. Only 5.000 pesos as of March 2010.
Update January 2014... lunch is now 7.000 pesos, and is still great! Such delicious food, and they pay attention to the nutrition factor as well.
Updated from previous review on Wednesday March 03, 2010