Preheat oven to 350. Prepare loaf pan with cooking spray, set aside.
Combine bananas, eggs, pancake mix, salt, cinnamon, vanilla in a mixing bowl. Smash ingredients together until well combined and to desired consistency (I like some chunks of banana in mine).
Pour into prepared loaf pan and top with a few walnuts.
Bake for 40-45 minutes, until center is baked and a toothpick comes out clean. If the edges brown too quickly, top with a piece of foil.
Allow to cool until the pan can be touched with your bare hand before removing it from the pan.
To make optional icing, combine all the ingredients until a thick but drizzly icing forms.
Once the banana bread is cooled, drizzle the icing over the top and enjoy!
Skip the icing to keep it super WW friendly.