Combine flours, 1/2 c. oats, walnuts, baking powder, pumpkin pie spice, baking soda, and salt in large bowl. Combine pumpkin, bananas, eggs, honey, apple juice, and vegetable oil in a mixer bowl. Mix well. Add wet ingredients to dry ingredients; stir just until blended. Spoon into 12 paper-lined muffin cups. Sprinkle with 2 TBS oats. Bake in preheated 370 degree F. oven for 23-27 minutes or until wooden pick inserted in center comes out clean. Remove muffins to wire rack; cool slightly. Serve warm with apple butter or fruit preserves. Makes 1 dozen.