01 - Preheat oven to 350°F. Lightly grease a 9x13-inch baking dish.
02 - Arrange the sliced bananas evenly on the bottom of the prepared baking dish.
03 - Spread the drained crushed pineapple over the banana layer.
04 - Scatter halved maraschino cherries on top of the pineapple.
05 - Sprinkle the dry yellow cake mix evenly over the fruit layers without mixing.
06 - Evenly distribute chocolate chips and, if using, chopped walnuts or pecans over the cake mix.
07 - Drizzle melted unsalted butter as evenly as possible over the entire surface.
08 - Bake for 35 to 40 minutes, or until the top is golden and the edges are bubbling.
09 - Allow to cool slightly before serving. Optionally, top each portion with whipped cream, additional cherries, and a drizzle of chocolate syrup.