Preheat oven to 350°F. Beat ... ungreased 9-inch glass pie pan, spreading bottom and up ... Combine whipped topping, yogurt and lemon rind in small bowl. Spoon ... cherry are possible choices.
Prepare angel food cake according to box, folding in grated lemon rind (optional). Cool. Cut into ... remove. Mix in yogurt. Use half of lemon mix between each layer.
In a large heat resistant ... whisk. Stir in yogurt, and fold in whipped ... mixture in the pie crust. Spread whipped topping on ... 3 points per serving.