I've been going to Carlos O'Brien's since I was a child. It's one of the finest mexican food establishments in the valley!
I admit that I am in a perpetual rut with regards to their dishes; I never eat anything but chimichangas!
However, my mother always has the pollo fundido, which I've also tried; it's AMAZING!
I love their salsa as well.
I've been going for 20 years, I'm not stopping any time soon!