01 - Preheat oven to 350°F. Grease a 9x13-inch baking dish with cooking spray or butter.
02 - Combine strawberry cake mix, eggs, oil, and water in a large bowl. Mix with electric mixer on medium speed until well blended, about 2 minutes. Spread batter evenly in the prepared baking dish.
03 - Beat softened cream cheese and butter in a separate bowl until smooth and creamy. Add powdered sugar and vanilla extract; continue beating until fully combined and fluffy, about 2-3 minutes.
04 - Drop spoonfuls of the cream cheese mixture randomly over the cake batter, leaving spaces between dollops.
05 - Run a knife or skewer through the batter and cream cheese mixture in a gentle swirling motion. Avoid over-mixing to maintain distinct marbled patterns.
06 - Sprinkle white chocolate chips, chopped strawberries, coconut, and pecans evenly over the entire surface.
07 - Bake for 40-45 minutes until edges are golden brown and center is set. A toothpick inserted should come out with a few moist crumbs but not wet batter. Do not overbake.
08 - Let cake cool in pan for at least 30 minutes before serving. Serve warm or at room temperature.