In a medium bowl, combine graham cracker crumbs, melted butter, and powdered sugar. Mix until well combined. Press the mixture into the bottom and sides of each taco shell to form a crust. Place the shells in the refrigerator to chill for 15 minutes.
In a large mixing bowl, beat the softened cream cheese, granulated sugar, and vanilla extract until smooth and creamy.
In a separate bowl, whip the heavy cream until stiff peaks form. Gently fold the whipped cream into the cream cheese mixture until fully combined.
Divide the cheesecake filling evenly among the chilled taco shells, smoothing the tops with a spatula.
Drizzle the strawberry puree over the cheesecake filling in each taco.
Top with sliced fresh strawberries and a dollop of whipped cream if desired.
Serve immediately or refrigerate for up to 2 hours before serving for a firmer texture.