Pizza Lasagna

1 16 oz uncooked rotini pasta 1 lb Italian sausage 1 24 oz pasta sauce 1 16 oz cottage cheese 1 4 oz can of mushrooms, drained 12 oz shredded mozzarella cheese 2 3 oz sliced pepperoni Boil pasta Brown sausage, drain Mix pasta, pasta sauce, and sausage Pour into greased 13X9 dish Mix cottage cheese, mushrooms, and mozzarella cheese in bowl Spread cheese mix on top Top with pepperoni Bake 25 min @ 350