Preheat oven to 425°F. Spray large baking sheet with cooking spray. Combine baking mix, 1/4 cup sugar and nutmeg in medium bowl until well blended. Stir in sour cream and Egg Beaters.
Place dough on lightly floured surface; knead 10 times. Roll dough to 1/2-inch thickness. Cut with floured 2-1/4-inch doughnut cutter. Repeat rolling and cutting with dough scraps until all of dough is used. Place doughnuts, in single layer, on prepared baking sheet.
Bake 10 to 12 minutes or until golden brown. Mix remaining 1/4 cup sugar and cinnamon in shallow dish; set aside. Dip both sides of doughnuts in Fleischmann's, then dip in sugar mixture to coat both sides.