Step 1

Combine the chicken, cream of chicken soup, buffalo sauce, onion, garlic powder, salt and pepper in a five-quart slow cooker. Cover the cooker and cook on low for four to five hours or until the chicken is tender.

Step 2

Cook the pasta according to package directions for al dente noodles. Drain the noodles and set aside until the chicken and sauce are ready.

Step 3

Remove the slow cooker insert. Stir in the cheese until melted. Add the pasta, sour cream and ranch dressing. If desired, top with celery.