Preheat oven to 350 degrees F (175 degrees C). Spray a 9×13-inch dish with nonstick cooking spray. Set aside.
Sprinkle strawberries with sugar and let rest until strawberries release their juices, about 10 minutes.
Meanwhile, in a large bowl, whip cream cheese until light and fluffy. Add strawberries to whipped cream cheese and mix until well combined.
Combine cake mix and melted butter in a separate bowl and mix until mixture comes together as a crumble.
Pour pie filling into the greased baking dish. Pour strawberry-cream cheese mixture on top. Evenly distribute crumble over pie filling.
Bake in the preheated oven for 30 minutes. Remove from oven and cool on a wire rack.