Preheat oven to 350°F (175°C) and lightly grease a 9×13-inch baking dish.
Prepare strawberry cake mix according to package instructions.
Spread chopped strawberries evenly over bottom of prepared baking dish. Add coconut and nuts if using.
Pour cake batter over strawberries.
In a separate bowl, beat softened cream cheese with powdered sugar until smooth.
Spoon cream cheese mixture over cake batter in dollops.
Drizzle melted butter evenly over the top.
Bake for 45–50 minutes, or until cake is set and top is lightly golden.
Cool slightly before slicing to allow creamy swirls to set.
