Giada proves how marinades and sauces can take dinner from delicious to dazzling. Pan-seared fish takes on a new flavor in a citrus and anchovy bath. Steaks sing in an Italian red wine sauce. Even vegetables get apick-me-up in an herb vinaigrette. Recipes for this episode include: Flat Iron Steak with Red Wine Sauce, Tilapia with Citrus Bagna Cauda, and marinated Zucchini and Summer Squash.