Butter bottom of 9x13 inch pan.  Break graham crackers in half and layer on bottom of pan.  In large bowl combine pudding, milk, pumpkin, spices and 1/2 whipped topping.  Slightly break up the Got Nuts snack mix.  Place 1/3 pudding mix on top of grahams then 1/3 go nuts mix, top with more grahams, 1/3 more pudding, then nuts repeat once more until top is grahams.  Cover with remaining whipped topping.  Sprinkle with more Got Nuts and cinnamon.  Refrigerate overnight.  Cut and serve.  Light and Delicious.