Cheese-Scalloped Carrots - cooking recipe

Ingredients

12 medium carrots, sliced
1 onion, minced
1/4 c. butter
1 tsp. salt
1/4 tsp. dry mustard
1/4 c. flour
2 c. milk
1/8 tsp. pepper
1/4 tsp. celery salt
1/2 lb. American cheese, sliced
bread crumbs

Preparation

Cook carrots, covered, in 1-inch of boiling salted water until tender.
Drain.