Preheat oven to 400F
Cut squash into halves lengthwise. Place squash, cut side down, in shallow baking dish. Add about 1 inch water (or simply dry roast?). Bake 40 to 45 minutes, or until tender.
Combine egg, 2 tablespoons Parmigiano Reggiano, cream, ricotta, salt, pepper and nutmeg in a medium bowl. Stir well. Stir in spinach.
Remove squash from oven and turn cut sides up. scoop out seeds with a spoon. Brush with oil and fill cavities with spinach mixture.
Return to oven and bake 20 minutes or until a knife inserted into spinach mixture comes out barely clean.
Cut each half lengthwise (into into quarters). Top with remaining cheese.
Serves 4.
from: relishmag N&O newspaper insert, fall 2010.