Cook shallot in butter in a 12-inch heavy skillet over moderate heat, stirring, until softened, about 3 minutes. Add beans, corn, and salt and cook over moderate heat, stirring, until vegetables are tender, about 6 minutes. Remove from heat and stir in lime zest and lime juice.
Copyright July 2003, Gourmet magazine. Printed with permission.
Adam Rapoport, editor in chief of Bon Appetit magazine and the website www.bonappetit.com, knows his way around a grill. He has edited an entire book on the subject: The Grilling Book: The Definitive Guide from Bon Appetit.