Sure, Food Network chefs have their own recipes but in this episode we'll find out what dishes they covet from other chefs! See the delicious delicacies Duff, Tyler Florence, and Sandra Lee wish they had thought of...and just how far they will go to get secret recipes? From Wolfgang Puck's Shanghai Lobster to Thomas Keller's Salmon Rillettes, we travel across the country to reveal the foods that leave Food Network chefs Filled With Envy.