In medium bowl, pour boiling water on gelatin; stir until gelatin is dissolved. Stir in yogurt until melted and smooth. Cover; refrigerate about 1 hour 30 minutes or until thickened but not set.
Meanwhile, heat oven to 350°F. Place cereal in food-storage plastic bag; crush with rolling pin to make 1 cup. In small bowl, stir cereal and butter until well mixed. Press mixture firmly in bottom of ungreased 8-inch square pan. Bake 10 minutes or until crust is light golden brown. Set aside to cool.
Beat gelatin mixture with electric mixer on high speed 7 to 8 minutes or until doubled in volume. Fold in sliced strawberries; pour over crust. Cover; refrigerate about 1 hour or until firm.
To serve, cut dessert into squares. Garnish each serving with strawberry fan.