1 lb. bulk pork sausage
1/2 c. chopped onion
1 c. elbow macaroni
1 (10 1/2 oz.) can cream of celery soup
2/3 c. milk
3 beaten eggs
1 1/2 c. shredded processed American cheese

Cook macaroni according to package directions. Cook sausage and onion until browned. Drain off excess fat. Combine sausage mixture, macaroni, soup, milk, eggs and cheese. Place in 2 quart casserole. Bake at 350 degrees for 40-45 minutes.