Completely dissolve gelatin in boiling water.Add ice cubes and stir until melted.Prepare pie filling mix with 3/4 cup milk as directed on package fad about 2 minutes.Blend in gelatin.Chill, if necessary, until thickened.Fold in 2 cups of the whipped topping and strawberries.Pour into crust.Freeze 1 hour or chill in refrigerator 3 hours before serving.Garnish with remaining whipped topping and additional strawberries, if desired.