Shares of Chipotle Mexican Grill (NYSE:CMG) (NYSE:CMG-B) are up nearly five times in value since the burrito business went public 19 months ago. Chipotle's P/E is now almost double that of Starbucks (NASDAQ:SBUX) and more than double the P/E of McDonald's (NYSE:MCD) and Taco Bell parent company Yum! (NYSE:YUM). Will shares go even higher or will the bears get the last laugh? In this installment of "Fool Video," I ask Motley Fool senior analyst Seth Jayson.