1 c. uncooked elbow macaroni
1 can cream of celery soup
1/2 can milk
1/2 c. grated cheddar cheese
12 oz. chicken, cooked & cut up
1/4 c. chopped onion

Prepare macaroni according to package directions. Drain. Combine soup, milk and cheese. Pour into 1 1/2 quart casserole. Bake at 325 degrees for 30 minutes.