Guy Fieri's laying down a challenge to see who can layer on the flavor. Aarti Sequeira starts off with a classic Indian Bombay Frankie and then rolls out some Lahmajun, or Armenian pizza. Rocco DiSpirito's layering the booze with his Dubliner and then goes old-school with a new take on his Ten-Layer Lasagna Bolognese. Ming Tsai is making some Kimchee Beef Scallion Pancakes with Watercress Slaw and then sweetening things up with his Coconut Cream and Chocolate Rice Cake Parfait. Jonathan Waxman wows the crowd with his tasty Timballo and tantalizing Tartiflette.