Creating the Banana Split Dump Cake is simple if you follow these easy steps:

1. Preheat the Oven: Preheat your oven to 350°F (175°C) and prepare a 9 x 13-inch baking dish by greasing it lightly.

2. Arrange the Pineapple: Pour the can of crushed pineapple, including the juice, into the bottom of the prepared baking dish, spreading it evenly.

3. Layer the Bananas: Evenly distribute the sliced bananas over the pineapple layer.

4. Sprinkle the Cake Mix: Pour the yellow cake mix evenly over the bananas and pineapple, making sure to cover all areas.

5. Add Toppings: Top the cake mix with semi-sweet chocolate chips, and if desired, add the chopped nuts and shredded coconut for added texture.

6. Drizzle with Butter: Evenly pour the melted butter over the entire mixture, ensuring it covers the cake mix.

7. Bake: Place the baking dish in the preheated oven. Bake for 45-50 minutes, or until the top is golden brown and the cake is bubbling.

8. Cool: Once done, remove the cake from the oven and let it cool for about 10 minutes.

9. Add Caramel Sauce: Drizzle caramel sauce over the top of the warm cake to enhance the flavor.

10. Serve: This cake can be served warm or at room temperature, making it flexible for any occasion.