When I first discovered the town of Sierra Madre, one of the first things I ate here was the Only Place in Town's Maggie Wong's Chinese Chicken Salad. It is really, really good. Last summer, I served a catering-sized portion at a book club meeting. The salad met with rave reviews, as did the cheese bread and the zuchinni bread, either of which comes with the salad.
I believe the restaurant used to be called The Headliner. It is now owned by Barney's Grill and Pub, in Old Town Pasadena, and its official name is "Barney's Only Place in Town."
Whatever it's called, it's great food, with a fun, kind-of-clubby / kind-of-old-timey ambiance. You should go there. I know I will, again and again.