In Primm there is not much to choose from for Mexican food. La Salsa has 2 locations, 1 in the Primm Valley Outlet Mall and there is another inside Buffalo Bill's next to Panda Express. I suggest the Mexico City Taco Plate. It comes with 3 tacos with a couple choices of meat. Their salsa bar has a good variety. I like to mix a couple of them together.
Hubby works up an appetite while my mom and I shop. So a Taco plate magically appeared. They were just fine. The Steak had a nice char to it and the carnitas had some good flavor!