The chefs are asked to do their part to help end childhood obesity and support First Lady Michelle Obama's "Let's Move!" national initiative by serving a healthy lunch at a local middle school. Guest Judge: White House chef Sam Kass

Padma's baby is hungry, so tonight's Quickfire requires the contestants to create food to tempt Krishna's budding palate. Next, they are paired together for breakfast, lunch and dinner in the in-room dining kitchen.