Cook beef, onion, salt, and ... cooled beef. Prepare shells as package directs. Drain. Fill ... mozzarella. Bake, covered at 350 degrees for 30 minutes.
Cook noodles according to package ... 1/2 pound mild Italian sausage and 1/2 pound lean ... 10"x6") dishes. Fill shells with cheese mixture and place ... freeze it (before baking).