Preheat oven to 350º. Grease a loaf pan and set aside.

In a large bowl, cream together butter and sugar.

Add eggs, one at a time, until combined.

Add vanilla, banana, and pumpkin puree. Mix until combined.

In a medium bowl, mix flour, baking soda, pumpkin spice, and salt.

Gradually add flour to the wet ingredients just until combined.

Fold walnuts into the batter and pour into your greased loaf pan.

Add more walnuts on top, if desired, and bake for 60 minutes, or until a toothpick comes out clean from the center of the bread.

Allow bread to cool before removing from loaf pan and slicing.