Chicken Noodle Casserole - cooking recipe

Ingredients

1 onion
1 Tbsp. butter
1 can mushrooms
1 can cream of celery soup
1 c. sour cream
1/4 to 1/2 c. Parmesan cheese
2 c. cooked chicken, boned and chopped
8 to 12 oz. noodles

Preparation

Saute onion in butter.
Mix all ingredients and place in casserole dish.
Top with buttered cracker crumbs.
Bake at 350\u00b0 for 30 minutes.