Preheat oven to 350.
Take the cinnamon rolls out of their tube and cut each cinnamon roll in thirds horizontally and then thirds vertically making 9 pieces out of each cinnamon roll.
In a small bowl, whisk together the sugar and pumpkin pie seasoning.
In a bowl, melt the butter.
In a buttered loaf pan or bundt pan, arrange a single layer of cinnamon roll pieces. Brush with butter and then sprinkle on the pumpkin pie sugar.
Repeat this step until the loaf pan is full.
Bake at 350 for 20 minutes.
Allow to cool before flipping out your monkey bread onto a serving plate.
Top with the pumpkin icing the pumpkin cinnamon rolls comes with.