Preheat oven to 350° F, prepare the 9x 5inch loaf pan with non-stick spray or oil and flour. Set aside.
In a medium bowl combine the flour, ground nutmeg, cinnamon, baking soda, baking powder and salt. Whisk together and set aside.
In a small bowl, mash the bananas and set aside.
In a large bowl with a hand mixer or stand mixer, cream the butter and sugar until light and fluffy for about 2 minutes. Add the eggs to the butter mixture one at a time and beat well after each addition.
Add the mashed bananas, sour cream, and vanilla extract and mix well until combined. Add the flour mixture and mix at low speed until well incorporated. Do not overmix the batter.
Fold in the toasted pecans. Pour the bread butter into the prepared pan and bake for about 45-50 minutes or until toothpick inserted into the center comes out clean and dry.
Cool loaf in the pan for about 10 minutes then transfer to a wire rack to cool completely.
Serve and enjoy.