Preheat oven to 350° and spray loaf pan with nonstick cooking spray.

Whisk together applesauce, egg, sugar, and oil until slightly pale.

Add flour, baking soda, cinnamon, salt, and nutmeg.

Fold in apples and walnuts, if using.

bake approximately 60 minutes or until bread is pulling away from the sides of the pan and a toothpick inserted near the center comes out clean. Cool on wire rack.