Preheat oven to 350°F. Grease or spray 4 mini bread pans, or 1 4x8 inch loaf pan.
Combined the mashed bananas with melted butter in a large bowl. Beat until fluffy.
Add egg and sugar. Mix well.
Stir in all remaining ingredients and mix just until thoroughly combined. Fold in nuts.
Divide the mixture into 4 mini pans or 1 loaf pan. If you are making mini loaves, they will bake in about 20-25 minutes; larger loaf will bake in about 60 minutes. You will know it's baked when a wooden skewer inserted in the middle comes out with just a few moist crumbs.