Chipotle Mexican Grill has a lot going for it -- an upscale burrito concept, a hip and eco-friendly image, expansion plans galore and a 500 percent-plus stock price gain in just over two years.
And then it has something not going its way -- a federal crackdown on its immigrant labor force that has so far forced Chipotle to fire hundreds of allegedly illegal workers in the state of Minnesota, perhaps more than half its staff there.
[Related: Partisan politics define states' immigration policies]
The probe is widening. Co-Chief Executive Monty Moran told Reuters on Friday that U.S. Immigration and Customs Enforcement (ICE) has also issued "notices of inspection" for restaurants in Washington D.C. and Virginia.
Investors in the Wall Street darling are taking note and one firm, Calvert Investments, plans to talk to Chipotle about the large number of undocumented workers uncovered.
Dependence on illegal labor is the elephant in the room for the U.S. restaurant business. And experts say the Chipotle ICE investigations are a wake-up call for an industry that is one of America's biggest employers and generates over $300 billion in annual sales, according to research firm IBISWorld Inc.
Chipotle -- a Denver-based company whose motto is "Food With Integrity" -- is one of the most well-known names caught in the immigration enforcement shift that began two years ago.