Tonight the Food Network's Iron Chef America's season premiere is a 2-hour episode with some very special guests, and it's a show we've been looking forward to for some time now. Facing off in Kitchen Stadium will be White House executive chef Cristeta Comerford and Bobby Flay versus Mario Batali and Emeril Lagasse, as the two teams try to take on the heat while using the unique secret ingredient. While usually the item or category is somewhat of a surprise to participants and viewers, tonight we know already that it's First Lady Michelle Obama who will assign the chefs the task of working with anything grown in the White House garden. more ›