Wash and hull strawberries. Place them upside down in cooked pie shell and set aside.
In a liquid measuring cup or small bowl, pour in water, cornstarch and sugar. Stir until mostly dissolved. Microwave 1-2 minutes until mixture bubbles up and thickens. {It should turn translucent.}
Stir in strawberry jello powder and pour over strawberries. Spread over top and refrigerate until set, 2-3 hours.
In a large bowl, whip cream, sugar and vanilla together until stiff peaks form. Spread over top pie and garnish with more fresh strawberries. Serve cold.
Notes
Recipe tips: In my opinion, everything is better with whipped cream but growing up we ate this strawberry pie without it. It's delicious either way.