Guillermo's Double L offers a variety of Mexican dishes with options for vegetarians. Located in Tucson, AZ, the restaurant provides a casual dining experience with outdoor seating and a full bar. The menu includes breakfast items like Chorizo and Eggs, appetizers such as Mini Chimis and Nachos Carne Asada, and beverages like Horchata and Lemonade. Customer reviews praise the outstanding service and delicious food, with highlights like the Flat Enchiladas and Carne Seca. Despite initial hesitation from lower ratings, guests have been pleasantly surprised by the quality and flavor of the dishes. Guillermo's Double L is a must-visit for those craving authentic Sonoran-style Mexican cuisine in a lively atmosphere.