Chipotle, the food industry’s fastest-rising star, reported earnings Monday that far exceeded Wall Street’s expectations. Despite higher menu prices because of some food supply shortages, Chipotle’s burritos (from the bowl-sheathed varieties to the tortilla-ensconced specimens) and tacos (soft and hard) are flying off the counters. The company’s sales at locations open for at least a year bounced up 17 percent over the last year, an enviable figure for any restaurant.