01 - Preheat oven to 350°F. Grease a 9x13-inch baking pan and line with parchment paper for easy removal.
02 - Combine cake mix, eggs, oil, and milk in a large bowl. Beat until smooth and pour into prepared pan.
03 - Beat cream cheese and butter until fluffy. Add powdered sugar and vanilla; beat until smooth.
04 - Drop spoonfuls of cheesecake mixture evenly over cake batter. Gently swirl with knife or spatula for marbled effect.
05 - Dollop strawberry pie filling over surface. Add sliced fresh strawberries evenly. Swirl gently again for dramatic pattern.
06 - Sprinkle white chocolate chips and sliced almonds evenly over the top.
07 - Bake for 45-50 minutes until edges are golden and center is mostly set (slight wobble is acceptable).
08 - Cool in pan for at least 20 minutes before slicing and serving.