Cheesy Carrot Casserole - cooking recipe

Ingredients

12 medium carrots, sliced
1/4 cup butter or 1/4 cup margarine
1/2 cup chopped onion
1/4 cup flour
1 teaspoon salt
1/4 teaspoon pepper
1/4 teaspoon celery salt
1 teaspoon prepared mustard
2 cups milk
8 ounces cheddar cheese, sliced (medium or sharp)
2 tablespoons butter or 2 tablespoons margarine
1/2 cup dry breadcrumbs

Preparation

Cook carrots in salted water until tender. You should have 6 cups. Drain.
Melt first amount of butter in saucepan. Add onion and saute until clear and soft.
Mix in flour, sailt, pepper and celery salt.
Stir in mustard and milk until it boils and thickens.
Layer in 2 litre casserole as follows: 1/2 carrots, 1/2 cheese slices, 1/2 carrots, 1/2 cheese slices, all of the sauce.
Melt second amount of butter in small saucepan. Stir in crumbs.
Spread over all.
Bake uncovered at 350 degrees F for 25 - 30 minutes until browned and heated through.