Overnight Chicken Tetrazzini - a new family favorite! It is on repeat in our house! Just dump everything in the casserole dish and refrigerate overnight. No boiling the noodles. They will soften overnight and be cooked to perfection in the finished dish. Chicken, cream of chicken, cream of mushroom, milk, chicken broth, onion, garlic, elbow macaroni and parmesan cheese. Use a rotisserie chicken for quick prep. #casserole #chicken #kidfriendly #noboil