The “Top Chef Masters” reunion dinner with Hugh Acheson, Susan Feniger, Tony Abou-Ganim, Mary Sue Milliken and Rick Moonen on Wednesday, Aug. 19, 2015, at Border Grill in Mandalay Bay. Star chefs and celebrities from the MGM Resorts International family will be featured in the final two episodes of Season 13 of Bravo’s “Top Chef” airing tonight and next Thursday, March 17, from MGM Grand.