NEW ORLEANS — Peter Lynch, chief executive officer of Winn-Dixie Stores (center, giving a thumbs-up), alongside New Orleans Mayor Ray Nagin on his right, rang the opening bell of the Nasdaq exchange last Thursday in recognition of the Jacksonville, Fla.-based retailer's reopening of a store here damaged by Hurricane Katrina. The 50,709-square-foot store will showcase Winn-Dixie's latest design concepts, including a warmer color palette, wider aisles and self-checkout lanes. New merchandising features include a stand-alone deli, a chicken wing bar, a flame rotisserie, a salad bar, an olive cart, a hot food bar, and expanded meat and produce departments.