The optional ingredients below are just the beginning. Fresh chorizo (crumbled and browned), Sautéed Onions, Roasted Garlic, blue cheese, or Mushroom Ragout would also be quite good.
Cook in a large pot of boiling salted water:
Preheat the oven to 325°F. Grease two 9-inch square baking pans. Have ready:
Mix together half of the cheese and 1 cup of the crumbs in a bowl with:
Set the bread crumb mixture aside. Drain the pasta, return it to the pasta cooking pot, and mix with:
Stir in the remaining cheese and bread crumbs. Divide the mixture between the prepared baking pans. Cover with the reserved bread crumb mixture. Bake until golden brown, about 25 minutes.