Chipotle Mexican Grill (NYSE: CMG) is a Denver, Colorao-based chain of Fresh Mex restaurants specializing in San Francisco burritos and tacos. Founded by Steve Ells in 1993, the restaurant is known for its chunky guacamole and large burritos. Chipotle is one of the first successful chains in the relatively new category of fast-casual dining establishments. In the past, McDonald's Corporation owned a majority interest in Chipotle. McDonald's has since sold their entire stake in Chipotle; full divestment was completed in October of 2006.