Chicken Tetrazzini – super delicious make-ahead casserole! Makes a great freezer meal!! Chicken, linguine, cream of chicken soup, cream of mushroom soup, sour cream, butter, chicken broth, salt, pepper, garlic, parmesan cheese, mozzarella cheese. SO creamy and delicious. Made this for dinner and everyone cleaned their plate! Even our picky eaters. This is definitely going in the dinner rotation!