Los Olivos is our go-to casual Mexican restaurant. The guacamole is similar to what I make at home, very simple (so delicious of course:). We also like the salsa, however they don't provide bowls for salsa, which really irks my boyfriend.
Most of the Queso dip is not great - it reminds me of (and may be) Velveeta (congeals quickly).
The have a Mariachi band Thursdays and Sundays. $3.00 carne asada and pork tacos Tuesdays, but only in the bar.