Cheese n pasta in a pot

1. Brown beef with onions and garlic; srain off fata.
2. Stir in spaghetti sauce, stewed tomatoes and mushrooms.
3. Simmer about a half hour.
4. Layer as follows in a dutch oven or casserole: half shells, half sauce, half sour cream, provolone cheese.
5. Repeat, ending with mozzarella.
6. Bake a half hour or so at 350°F.
7. Until heated through and bubbly.
8. Taste of home ground beef collection 1996 editio