Chipotle Mexican Grill, Inc. (NYSE:CMG) reported financial results for the first quarter Wednesday after the bell. Here’s a rundown of the report and a look at why shares are sizzling after hours. Q1 Earnings: Chipotle said first-quarter revenue increased 14.1% year-over-year to $2.702 billion, which beat the consensus estimate of $2.675 billion, according to Benzinga Pro. The fast-casual restaurant chain company reported adjusted earnings of $13.37 per share, which beat analyst estimates of $11.68 per share.  Comparable restaurant sales increased 7% year-over-year due to higher transactions and a 1.6% increase in average check. Digital sales represented 36.5% of food and beverage revenue. Operating ...