Preheat oven to 350 degrees. lightly spray 3 bread tins with cooking spray. set aside.
In a large mixing bowl, combine flour, sugar, baking soda, salt, nutmeg and cinnamon. stir.
add pumpkin, water, oil, eggs and 3/4 cup walnuts. stir until well combined.
pour batter into tins and add remaining walnuts to top of each tin.
bake for 50-60 minutes. (done when toothpick inserted comes out clean) let cool a little and slice with a plastic knife. Top with butter and Enjoy!