1. Preheat your oven to 350°F (175°C) and lightly grease a 9×13 inch baking dish.
2. Spread the strawberry pie filling evenly across the bottom of the prepared baking dish.
3. In a medium bowl, beat the cream cheese until smooth. Add in the sugar, vanilla extract, and milk, and continue to mix until well combined.
4. Pour the cream cheese mixture over the strawberry filling, spreading it gently with a spatula.
5. Sprinkle the dry cake mix evenly over the cream cheese layer, ensuring it covers the entire surface.
6. Drizzle the melted butter over the cake mix, making sure to cover any dry spots. The butter will help create a deliciously crispy topping.
7. Bake in the preheated oven for 45-50 minutes, or until the top is golden brown and the cake is set.
8. Allow the cake to cool for at least 15 minutes before serving. This will help the layers settle and make serving easier.

From my experience, patience is key here. Letting the cake cool slightly allows the flavors to meld beautifully, creating a more cohesive dessert.