I know the one that is on the way out of MK does for sure...and great big hot dogs that you can put chili and cheese on for $1.50 I think...I know it wasn't much. We stopped there for gas one day when we were coming out of the MK and were surprised. lol...they looked so good we bought a couple and and ate them with a beer for lunch, right there in our car. We had wanted to stop at Casey's in the MK for hot dogs but were in a hurry that day to get to MGM and had to fill the car up with gas...it was a nice surprise!
I don't know for sure if the other one also sells beer, but it would make sense, wouldn't it? If they let them sell beer on the way in/out of the MK, wouldn't they also be selling the same at the other location (s)? We bought a 6 pack of bottles that day and took the other 4 bottles back to the resort with us.