Preheat oven to 350F.
Cook your pasta according to the package and if you're using raw chicken, cook now.
In a large mixing bowl, add pasta, chicken, mozzarella cheese, marinara sauce, cottage cheese. Mix all together and add to a casserole dish.
Cover casserole dish with aluminum foil. Place in oven for about 30 minutes.
After cook time, remove foil and top with breadcrumbs and more cheese (mozz and Parmesan).
Place in oven for about 10 more minutes, uncovered.
