Preheat the oven to 350 degrees F. Spray a loaf pan with nonstick cooking spray or line with foil and then spray.
Mash bananas in a medium mixing bowl. Add the rest of the ingredients to the bowl.
Mix together until smooth.
Prepare loaf ban with cooking spray. [Optional: line it with parchment paper.]
Pour mixture into loaf pan.
Bake 50 minutes* or until toothpick inserted comes out clean.
Remove from oven and cool 10 minutes before taking out of the pan.
Slice and serve.
*It might take you more time (or less) to cook the banana bread all the way through. All ovens vary, and the altitude at which you are baking is a factor as well. Chocolate Banana Bread can be stored at room temperature for 3-5 days. It also freezes well.