Bake pie crust according to package instructions
While pie crust is baking, combine strawberry slices with powdered sugar and allow to sit for a few minutes, then drain juice off of strawberries
In a medium sized pot, combine granulated sugar, water, corn starch and salt and cook over medium heat until thick and clear, being sure to stir constantly so that it does not scorch
Remove from heat and add in jello mix and stir well
Once pie crust is baked, remove from oven and pour strawberries into crust
Pour jello mix over strawberries and allow to chill in refrigerator overnight, or until set
Top with whipped topping before serving
Enjoy!