Preheat oven to 400 degrees. Grease the muffin pan cavities with softened butter.
In a large bowl, whisk together the cream cheese, pumpkin puree, and all remaining cheesecake ingredients. Mix well until smooth and no clumps remain.
In a separate bowl, combine the flour, brown sugar, pumpkin pie spice and flour. Cut in the cold butter until you have small sandy clumps.
Press one cinnamon roll into each cavity, working it up the sides, creating a well for the cheesecake filling. Add 1-2 tablespoons of cheesecake filling into each cinnamon roll.
Sprinkle on the streusel topping over each cinnamon roll muffin, covering most of the muffin tops.
Lightly cover the pan with aluminum foil and bake removing the foil halfway through. Bake for a total of 15-20 minutes or until a toothpick inserted in the center comes out clean. Cover with foil again if the rolls begin to brown too quickly.
While the cinnamon rolls are baking, whip together the simple pumpkin spice icing by combining all ingredients into a medium bowl. I just rinse out my streusel bowl and use it for the icing.
Once the cinnamon rolls are baked through, allow them to sit and cool for at least 15 minutes before drizzling the icing on top. If you ice them too soon it will just melt into a mess.