Preheat the oven to 325 F.
In a large bowl, combine all the dry ingredients: flour, sugar, baking soda, salt, and spices. Mix until well combined.
3 cups all purpose flour, 2 3/4 cup sugar, 1 tbsp baking soda, 1 tsp salt, 1 tbsp ground cinnamon, 1/2 tsp ground nutmeg
In a separate large mixing bowl, combine your wet ingredients: eggs, vanilla, vegetable oil, applesauce, crushed pineapple, and mashed bananas. Mix until those are well combined.
4 large eggs, 2 tsp vanilla extract, 1 cup vegetable oil, 1/2 cup apple sauce, 1/2 cup crushed pineapple, 3 medium bananas
Slowly start adding the dry ingredients to the wet ingredients. You can mix by hand or use an electric or stand mixer.
Mix until you have a nice, creamy cake batter–but DON’T over mix!
Prep a 9 x 13 baking dish with nonstick cooking spray and pour the hummingbird cake batter into the prepared pan.
Bake the cake at 325 degrees F for 1 hour and 20minutes, or until a knife inserted into the center of the cake comes out clean.
Let the cake cool until it's at room temperature.