Carlos O’Brien’s Mexican Restaurant reputation is built on outstanding service and plentiful portions of award winning Mexican food in Arizona! Carlos O’Brien’s was established in 1978 in a modest strip mall on 16th Street and Bethany Home Road. With diners waiting in line for seats and parking spaces the owners found a spacious location just a few miles north on 12th Street and Northern. Since then, a location on Scottsdale and Bell Roads was added. The owners have kept the same ideas since the beginning and that includes Great Food, Huge Portions and Excellent Service. Carlos O’Brien’s was established in 1978 in a modest strip mall on 16th Street and Bethany Home Road. With diners waiting in line for seats and parking spaces the owners found a spacious location just a few miles north on 12th Street and Northern. Since then, a location on Scottsdale and Bell Roads was added. The owners have kept the same ideas since the beginning and that includes Great Food, Huge Portions and Excellent Service.