In a mixing bowl, combine the graham cracker crumbs and melted butter. Mix until the crumbs are evenly coated. Press the mixture firmly into the bottom of a 9x13 inch baking dish to form the crust.
In another mixing bowl, beat the softened cream cheese, powdered 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.
Spread half of the cheesecake filling over the graham cracker crust in the baking dish.
Layer half of the sliced strawberries evenly over the cheesecake filling.
Spoon the strawberry jam over the strawberries and spread it gently.
Add the remaining cheesecake filling on top and spread it evenly.
Finish by layering the rest of the sliced strawberries on top of the cheesecake filling.
Cover the baking dish with plastic wrap and refrigerate for at least 4 hours or overnight for the best texture.
Once set, slice into pieces and serve chilled.