King Crab and Jalapeño Tacos at Union

These bite-size tacos—a twist on the traditional taco—pack a lot of fresh ingredients and spice. The shells, filled with king crab and tiger shrimp, are topped with layers of cucumber, red onion, avocado and jalapeños. No taco would be complete without hot sauce, and these are served with a citrus horseradish version. $18, in Aria at CityCenter, 693-8300.