Make a true run for the border at this authentic Mexican joint in North Las Vegas.. In Short It's anyone's guess where the other seven Rigo's restaurants are, but for great tacos made fast, No. 8 is a good spot to visit. It offers authentic Mexican tortillas, tacos and fried pork burritos to customers who know and appreciate the difference between authentic and pathetically franchised. A killer salsa bar features freshly made, piquant tomato, smoked chili and green chili sauces not recommended for the faint of heart.