Halve and seed 2 honeynut squash (or 1 small butternut squash). Rub all over with olive oil; season with salt and pepper. Roast cut-side down on a foil-lined baking sheet at 450 degrees F until tender, about 25 minutes. Scoop the flesh into a bowl and mash with 2 tablespoons butter and a pinch each of nutmeg, cayenne and salt. Sprinkle with chopped parsley and chives.