Preheat the oven to 475 degrees. Coat a 9-inch pie dish with cooking spray.
Prepare the pie crust by cutting shortening into the flour and salt in a large bowl until it forms small pea-size crumbles.
Sprinkle in water, 1 tablespoon at a time, tossing with a fork until all flour is moistened and pastry forms into a large ball. (1 -2 teaspoons of water can be added if necessary).
Shape into a flattened round on a lightly floured surface. Roll the pastry 2 inches larger than the inverted pie plate.
Gently lift the dough and place it in the pie pan, pressing firmly against the bottom and sides. Pinch the edges to form a nice crust. Poke holes in the bottom of the crust with a fork.
Cook the pie crust by placing it in the oven and baking for 17-20 minutes or until lightly browned. Cool completely.
Prepare the lemon Jello by combining the water, sugar, cornstarch, and lemon juice in a large saucepan over high heat. Bring to a boil, then reduce the heat and stir until slightly thickened (about 4-5 minutes).
Add the lemon gelatin and stir until dissolved.
Cool to room temperature, then add strawberries and mix thoroughly.
Finish the pie by pouring the mixture into the prepared pie crust and refrigerating for 4 hours or until set.
Make the whipped cream by beating all ingredients with a hand mixer or in a stand mixer for 5-7 minutes until fluffy.
To serve, slice the pie and top with a dollop of whipped cream. Enjoy.