Burgers are economically bulletproof: Bobby Flay By: CNBC.com News August 15, 2014 at 13:14 PM EDT In the crowded fast-casual market dominated by the likes of Chipotle and Panera, a celebrity-backed burger joint may also be a secret sauce to success. Read More >> Related Stocks: Chipotle Mexican Grill Noodles & Company Red Robin Gourmet Burgers Inc