Meanwhile, heat the butter in a skillet over medium high heat. Add the shallot and cook, stirring, until slightly softened, about 2 minutes. Add the pumpkin and nutmeg and cook, stirring, for 1 minute. Stir in the cream and bring to a low boil. Reduce the heat to medium low and simmer, stirring, until slightly thickened, about 5 minutes. Stir in the cheese and cook until thick, about 1 minute more. Season to taste with salt and pepper.