This recipe is basically a steamed cake. Here we use bananas to flavor the bread, but you could adapt most quick breads or muffin recipes for the rice cooker based on the ratios in this recipe.
In stand mixer fitted with the paddle attachment, mix together the bananas, butter, and sugar. Add the eggs one at a time, mixing to incorporate. Add the vanilla extract and vanilla bean. Sift together the flour, baking powder, baking soda, and salt. Add the dry ingredients in two batches to the wet ingredients. Mix just to incorporate. Finally, fold in the nuts.
Grease the inside of your rice maker, and pour in the batter. Cook for about 90 minutes or two cycles on your rice cooker. Remove the bread and serve.