The casual dining chain Red Robin Gourmet Burgers (RRGB) reported better than expected results thanks to the success of new smaller-format restaurants and new menu items. The chain reported adjusted earnings per share of 24 cents, flat from a year ago, but 8 cents over analysts' forecasts. Revenue climbed 3.4% to $213.3 million, beating views for $211.69 million. Sales at company-owned restaurants open at least a year climbed 1.1%. "The success of