If you go the Hoover Dam really hungry, this place would earn five stars as it is the ONLY place to eat for miles. The next closest option is the Hacienda Hotel and Casino about 10 miles away with their 99 cent shrimp cocktails. Ouch.
Truth be told, the food isn't bad at all. I had a grilled ham and cheese sandwich with fries and it tasted fine. Kinda hard to mess that up. Prices were high, but not as bad as they could have been given the circumstances. There is indoor and outdoor seating. It was nice and cold inside, which is a novelty on 100+ degree days. The line was a bit long when we were there, but moved quickly.