Here is another gem from the Tast of Home cookbook. The best part? It makes two batches so you get two dinners for the labor of one! This is a really fun an easy dish to make when you are thinkin' pizza!
2 pounds ground beef
1 large onion, chopped
2 jars (28 ounces each) spaghetti sauce
1 package (16 ounces) spiral pasta, cooked and drained
4 cups (16 ounces) shredded part-skim mozzarella cheese
8 ounces sliced pepperoni
Transfer to two greased 13-in. x 9-in. baking dishes. Sprinkle with cheese. Arrange pepperoni over the top. Cover and freeze one casserole for up to 3 months.
Bake the second casserole, uncovered, at 350° for 25-30 minutes or until heated through.
To use frozen casserole: Thaw in the refrigerator overnight. Bake at 350° for 35-40 minutes or until heated through.