Preheat oven to 350 degrees F. Prepare 9″ x 9″ cake pan.
Combine oat bran, flour, baking powder, baking soda, cinnamon, cloves, salt and pecans.
Beat together egg and oil. Add sugar and pumpkin and stir well.
Add dry ingredients to liquids all at once and stir until ingredients are thoroughly combined. Spread batter evenly in prepared pan.
Bake 25-28 minutes or until cake tests done. Remove from pan and cool on wire rack. Dust with icing sugar or dress up by adding a cream cheese icing.