Preheat oven to 350°F. Lightly spray 8-1/2 x 4-1/2-inch loaf pan with baking spray; set aside.
Combine flour, baking powder and salt in medium bowl. In second bowl, combine Egg Beaters, yogurt and vanilla.
Cream Fleischmann's and sugar in large bowl with electric mixer on medium speed 2 to 3 minutes or until well blended. Gradually add Egg Beaters mixture. Then add flour mixture 1/2 cup at a time. Mix until well blended. Stir in lemon peel. Pour batter into prepared pan.
Bake 60 to 70 minutes or until wooden pick inserted near center comes out clean. Loosely cover with aluminum foil the last 10 to 15 minutes if browning too quickly. Cool on wire rack 5 minutes. Remove from pan. Cool cake at least 20 minutes before slicing. Serve with Reddi-wip, if desired.