This week on Top Chef, the chefs must put their creative minds to the test for the quickfire challenge and use one of the seven colors of the rainbow to create a color-themed three-item dish that is not only a treat for the taste buds, but also appealing to the eye. Ted Allen and Consulting Chef of Mauro's Cafe at Fred Segal, Robert Ivan, serve as guest judges, and "Entourage's" Debi Mazar makes an appearance in the episode.