Pumpkin Macaroni and Cheese is cheesy, homemade macaroni and cheese with just a hint of a pumpkin flavor for a perfect fall dish.
In a saucepan over medium heat, melt the butter.
Add the flour and whisk constantly for 1-2 minutes, or until the mixture turns light brown.
Remove from heat and gradually pour in the warm milk, whisking constantly.
Add the pumpkin puree.
Return the pan to the heat and whisk another 3-5 minutes, or until thickened.
Add the salt, garlic powder, nutmeg, and optional cayenne pepper and stir to combine. Remove from heat.
Add the cheeses, stirring to melt.
Pour the sauce over the top of the cooked pasta shells. Stir to combine.
Season with salt and pepper and top with chopped parsley. Serve hot.