Roll pie crust out and press into a 9 or 10 inch pie plate. Trim and crimp sides.
Bake pie shell according to package directions. Cool.
Bring water, sugar, and cornstarch to a boil in a large pot over medium heat.
Stir until thick and clear, about 2-3 minutes.
Add strawberry jell-o powder and mix well.
Remove from heat and fold in sliced strawberries.
Pour into cooled pie shell.
Place in refrigerator until set, about 1-2 hours.
Slice and serve topped with a dollop of whipped cream.