A gourmet hamburger combines a touch of refinement with a comfortable approachability, like a bathrobe with epaulettes. Salute the burger with this Groupon.

$20 for $40 Worth of Organic Gourmet American Fare

Menu of organic and upscale dinner eats includes dishes such as a crispy-pork-belly bun ($9), creamy shakes and malts ($8), vegan-patty Utah burger with sprouts and avocado ($13), and the beefy Hen House burger topped with bacon, lettuce, tomato, and fried egg ($14).

Holsteins Shakes and Buns

Nestled within the glamorous confines of the Cosmopolitan of Las Vegas, Holsteins Shakes and Buns plies patrons with hearty plates of inventive burgers, sandwiches, salads, and shakes culled from fresh and organic ingredients. Hardworking head chef Anthony Meidenbauer drew from his many years of experience as a restaurateur and herder of wild hamburgers to develop the eatery's earth-friendly recipes that include hormone-free meats, artisanal cheeses, organic toppings, and house-made buns. As juices run down chins, the graffiti-infused décor conjures a youthful vibe, and creamy malts, shakes, and frothy beers pair tastefully with the ensandwiched fare.