Old Town is among San Diego's top tourist stops, and all those visitors need to eat somewhere. Mexican restaurants are obviously popular, and Casa Guadalajara in Bazaar del Mundo ranks near the top of the list. Tortillas made in-house, great margaritas and live mariachi bands give it an edge over much of the competition, but the food is quite well-prepared and fresh with all the expected choices plus a few non-standard ones. Try the chimichangas or enchiladas. Be prepared to wait on weekend evenings. Choose to dine indoors or on the patio amid the fountains. People also love the folk art and overall ambience.