Stopped by Sammy's here at the airport today with my friends. It was surprisingly not bad like some of the other eateries at McCarran. This is in the C side of terminal 1.
The restaurant's dining area isn't that big so it's tough to navigate through with your luggage. You seat yourself and then the lovely wait staff will come to help take care of you. We were lucky enough to have Ruthlee help us out today. They also have the cool buttons at the table where you can ring for service or pay your bill. Granted the place is small enough where it might not be necessary but it is helpful to have just in case.
I ordered the grilled chicken sandwich and it was pleasantly good. It comes with grilled chicken, guacamole, spread, tomato, lettuce, chipotle crema, queso fresco, and crispy onion. It came with a seasoned side of fries. There's also cholula at the tables along with ketchup so it added an extra kick to the fries.
Food came out decently quick since they probably expect people have plane rides to catch. I will definitely have to come back the next time I have to reluctantly eat at the airport.