This quite California Ave. Mexican Restrauant serves some of the best mexican food in Palo Alto. It's located on California Ave, and you can find many people who work on Page mill Rd (e.g. HP Employees, Accenture employees) dining here on weekedays for lunch. It's less full at night, so dinner is a much more intimate meal if you want mexican food at night.
Some of the best dishes include the super burito ($9) filled with 3 types of meat and the Tortialla Soup ($7) which can be a meal in itself as the portions are huge.
The chips and salsa are all freshly hand-made and are complimentary with your meal. Definately a good place to get a high-quality, mexican meal.