Two-Pasta Timbale

Directions

1. 1
   Preheat the oven to 350 degrees.
2. 2
   Grease a 3-quart round deep glass baking dish with the butter.
3. 3
   Arrange the spaghetti in a spiral pattern over the bottom of the prepared baking dish.
4. 4
   Spoon the Bolognese sauce into a pastry bag fitted with a wide plain tip and pipe the sauce into the rigatoni.
5. 5
   Arrange the rigatoni over the spaghetti in the prepared baking dish.
6. 6
   Bake for 15 minutes.
7. 7
   Invert the baking dish onto a serving plate and lift it off.
8. 8
   Spoon the tomato sauce on top of the timbale and sprinkle with the Parmesan cheese.