The portions are HUGE here. My friend wanted to go since it was on Man vs. Food, and since last time she was in Vegas it was like an hour wait.
Tip: go at a weird/off time (10:30am, 11am) because it will only be about a 20 minute wait. We went on a Sunday at like 10:45. When we left there was a HUGE line of people waiting for lunch.
ALSO text "Vegas" to 227466, and you will get Total Rewards offers - another reason we went here is because we got a BOGO for the Tractor Driver Combo, which comes with sausage/potatoes/bacon (your choice), pancake or waffle, and eggs. I also got ham on the side which was delicious. We upgraded to their specialty pancakes for $1 extra and they were HUGE. We finished about 1/2 of that, each. All of the other food I saw people eating was ginormous too ... I think you can split portions but they do charge a small fee for doing that.
I would come back to Hash House next time I'm in Vegas! Kind of wish it wasn't at the Quad (aka Imperial Palace - lots of construction going on there right now, Jan. '13) but oh well. Only con was that the service was pretty slow, it took about 1/2 an hour to get our food, but can't really beat $7 each for breakfast ($13.95 for the Tractor combo normally).