Home to Denver Biscuit Company and Fat Sullys NY Pizza. Much like the mashup of sci-fi and westerns, Atomic Cowboy is a cultural mashup of ideas & experiences, food & drink, late night & early morning, the North & the South. The fun begins at sunrise with Denver Biscuit Company serving award winning breakfast. Mile high house-made biscuit sandwiches loaded with bacon, fried chicken and eggs.... When the clock strikes Fat Sullys o-clock, get your hands on a giant hand-tossed NY style Pizza pie or slice, award winning Lights Out Smashburger or salads, knots and wings.