01 - Preheat oven to 350°F. Grease a 9x13 inch baking dish with butter or nonstick cooking spray.
02 - Spread the fresh or frozen sliced strawberries evenly across the bottom of the prepared baking dish. Spoon the strawberry pie filling over the strawberries and spread it into an even layer.
03 - In a mixing bowl, beat the softened cream cheese with granulated sugar and vanilla extract using an electric mixer or whisk until completely smooth and creamy.
04 - Drop spoonfuls of the cheesecake mixture evenly over the strawberry filling layer. Do not spread or stir — the dollops will spread naturally during baking.
05 - Sprinkle the dry cake mix evenly over the entire surface, covering all the cheesecake and strawberry layers. Do not stir or mix.
06 - Pour the melted butter evenly over the dry cake mix, covering as much of the surface area as possible to ensure proper browning and crispness.
07 - Bake for 40-45 minutes until the top is deep golden brown, the center is set, and the cheesecake mixture bubbles at the edges.
08 - Allow the cake to cool for at least 20 minutes before serving. Serve warm or at room temperature, optionally topped with vanilla ice cream or whipped cream.