Moreno's Mexican Grill is an Authentic Mexican Food Restaurant Moreno’s Mexican restaurant started as a hot dog cart in 2006 on the corner of Broadway and Horne in Mesa, AZ selling our award-winning Sonoran Hot Dogs. We rented space on the corner in order to have the cart there, and 2 years later bought the building that was there and demolished it. We then rebuilt it to become our first brick and mortar restaurant. We are family owned and operated.