Shells And Sauce

Directions

1. 1
   In large pan, pour olive oil and onion; simmer.
2. 2
   Add ground beef and sausage (brown).
3. 3
   Add tomato puree and tomato paste. Cook about 2 hours on low heat, covered.
4. 4
   Cook shells as directed. Drain; rinse with cold water.
5. 5
   In a large baking dish, alternate layers of sauce, cheese and shells.
6. 6
   Cover bottom of pan with sauce first.
7. 7
   End with sauce on top.
8. 8
   Bake at 350° for 40 minutes.