Preheat your oven to 350°F (175°C). Grease and flour two 9-inch round cake pans.

In a large mixing bowl, whisk together the flour, sugar, baking soda, cinnamon, and salt until fully combined.

Add the vegetable oil, eggs, and vanilla extract to the dry mixture. Stir until everything is nicely blended.

Gently fold in the crushed pineapple, mashed bananas, and chopped nuts if you’re using them. Be careful not to overmix.

Evenly distribute the batter between your prepared cake pans.

Place the pans in the preheated oven and bake for 25 to 30 minutes. The cake is done when a toothpick inserted into the center comes out clean.

Let the cakes cool in the pans for about 10 minutes before transferring them to a wire rack to cool completely.

For the frosting, beat together cream cheese and butter until smooth. Gradually add powdered sugar and vanilla extract, thinning with milk if needed.

Once the cakes are cool, frost the tops of one layer, stack the second layer on top, and finish frosting the top and sides of the cake as desired.

Slice and serve this incredible cake alongside coffee or vanilla ice cream.