Rice Soufflé

Preheat oven to 300°. Stir together rice and egg yolks in a medium bowl. Stir in milk, melted butter, cheese, salt, and pepper. Beat egg whites at high speed with an electric mixer 2 to 3 minutes or until stiff peaks form; fold into rice mixture. Pour rice-and-egg white mixture into a lightly greased (with cooking spray) 8-inch square baking dish, and bake 30 to 35 minutes or until golden.