Judges, including Sam Kass, Executive Director of "Let’s Move!", score lunch recipes submitted by kids from around the country at the Walter E. Washington Convention Center in Washington, D.C., May 31, 2013. Winning recipes will be served at the White House for the Kids’ State Dinner this summer.

Judges, including Sam Kass, Executive Director of "Let's Move!", score lunch recipes submitted by kids from around the country at the Walter E. Washington Convention Center in Washington, D.C., May 31, 2013. Winning recipes will be served at the White House for the Kids' State Dinner this summer.