1 lb. hamburger, browned and well drained
2/3 box rotini noodles (about 4 cups when dry),
cooked
8 oz shredded Mozzarella cheese, or as desired
1 can cream of mushroom soup
1 can (4 oz.) mushrooms
24 to 32 oz jar of your favorite pasta sauce
1 - 3.5 oz. pkg. sliced pepperoni
Layer ingredients in buttered slow cooker as follows:
hamburger, noodles, cheese, soup, mushrooms, sauce and pepperoni.