Throwdown with Bobby Flay - Season 4 (2008)

Dave Greco, the second-generation owner of "Mike's Deli" in the Bronx, defends his family's authentic eggplant parmigiana recipe.

A chicken-and-waffles expert defends his recipes that originated in Harlem, N.Y. in the 1930s.

Bobby heads to Philadelpha for a soft-pretzel challenge against Pretzel Boy's John Howe and Tim Dever.

Bobby challenges Jorge Ayala, head chef of New York City's "La Fonda Boricua", to an arroz con pollo (rice with chicken) cook-off.

A grilled-cheese challenge takes place at the "Pop Shop" in Collingswood, N.J., which has more than 30 variations of the American classic on the menu.

Bobby challenges Sohui Kim, chef/owner of "The Good Fork" in Brooklyn, to a dumplings cook-off.

Bobby takes on an award-winning pit master from Chesapeake, Va., in a pulled-pork cook-off.

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Iron Chef Bobby Flay takes on three past Throwdown competitors, Delilah Winder (macaroni & cheese), Butch Lupinetti (barbecue) and Nigel Spence (jerk rib-eye), in an all-against-one rematch, under the Miami sun.

Italian-American chef Mark Bove, owner of "Bove's Café" in Burlington, Vermont, is the challenger in a lasagna cook-off.