Choose from all the standard Mexican favorites on the extensive menu, or opt for one of the more complex dishes like the barbacoa (long-simmered beef in a spicy ranchero sauce) or the camarones Cancún (shrimp sautéed in tequila). Both the Dublin and Livermore restaurants are sparkling clean and always crowded, though riotously noisy when filled with big groups celebrating over pitchers of Sauza Extra Gold margaritas. The staff—savvy and accessible—could not be better in these family-owned and -operated restaurants. Lunch and dinner daily. Also in Livermore.