Many a burger lover's bucket list includes Shake Shack. Its devoted following started in New York, where it began as a food cart, and when Shake Shack opened in Las Vegas, the long lines were a testament to the restaurant's reputation for serving up tasty burgers. Shake Shack keeps things pretty simple, featuring hamburgers and hot dogs and the usual sides. The sustainability and eco-friendliness of Shake Shack's food and restaurants is an important part of their philosophy: 100% natural Angus beef, humanely raised and sourced verified, without hormones or antibiotics. The Summerlin and MGM locations each have their own selection of concretes, giving customers a big selection of cold sweet treats to try. The atmosphere here is relaxed and contemporary, like a fast-food place that's all grown up. You'll also find beer and wine, as well as dog treats at the Summerlin location.