Follow these simple steps to create your very own Banana Split Dump Cake:

1. Preheat the Oven: Preheat your oven to 350°F (175°C).
2. Prepare a Baking Dish: Grease a 9×13-inch baking dish with cooking spray or butter.
3. Layer Banana Slices: Place the sliced bananas evenly on the bottom of the prepared dish.
4. Add Pineapple: Pour the drained crushed pineapple over the bananas, making sure it’s evenly distributed.
5. Spread Cherry Filling: Add the cherry pie filling on top of the pineapple so it covers the mixture.
6. Sprinkle Cake Mix: Evenly sprinkle the dry yellow cake mix over the fruit layers. Make sure it’s well-covered.
7. Drizzle Butter: Pour the melted unsalted butter evenly over the cake mix.
8. Add Coconut and Nuts: Sprinkle the shredded coconut and chopped walnuts or pecans over the melted butter layer.
9. Bake: Place the baking dish in the preheated oven and bake for approximately 45-50 minutes, or until the top is golden brown and bubbly.
10. Cool and Serve: Allow the cake to cool for about 10-15 minutes (or serve warm). Top with mini marshmallows and maraschino cherries if desired.

These simple steps will guide you in creating this fantastic dessert that’s all the rage!