In-N-Out on Tropicana Blvd, on the west side of the highway behind NYNY.
I also like to get Sirrico's Pizza at NYNY... and Gonzalez Y Gonzalez at NYNY.
Never miss eating at Cheeseburger Paradise in the Miracle Mile Shops (in Planet Hollywood).
Always have breakfast at Rainforest Cafe in MGM Grand.
Also stopped a few times for breakfast at Denny's by Casino Royale.