Preheat your oven to 350°F (175°C).
In a 9x13 inch baking dish, spread the strawberry pie filling evenly across the bottom.
Dot the cream cheese cubes over the filling. No need to stir—just trust the process.
Sprinkle the entire box of cake mix evenly over the top.
Place the butter slices over the cake mix, trying to cover as much as possible.
Bake for 45-50 minutes or until the top is golden brown and bubbly.
Let it cool slightly before serving. Eat warm, cold, or somewhere in between.