Don't Skimp on the Shrimp

Four chefs must make their signature dish using an insignificant four and a half pounds of ingredients. Next, can the chefs butter up the judges with a fantastic weeknight family dinner featuring jumbo butterfly shrimp? Then, the finalists must make an upscale lunch that uses up an ingredient from every aisle. The winner will go on a Shopping Spree worth up to $20,000. (Episode: GK0407H)