Large paved parking lot east of Buffalo Bill’s Casino that is easy to access, well lit, and level. Security patrols throughout the night, but never bothered anyone. Trucks stay in their “area” and RV’s in another.
There are good fast food and sit down restaurants in the nearby casinos. Some require a bit of walking.
Fuel is available at the Flying J travel center on the other side (west side) of the freeway.