Instructions

1. Melt 6 tablespoons butter in a sauce pan
2. Whisk in 4 tablespoons flour, 2 teaspoons salt, 1/2 teaspoons pepper. Blend well.
3. Remove from heat. Gradually add 4 cups milk.
4. Return to heat. Cook, stirring constantly until thick and smooth.
5. Stir in grated onion (not chopped), mustard, and Worcestershire sauce to taste.
6. Stir in all but 1/4 cup cheese until melted.
7. Place in a large, greased casserole pan. Put the noodles in and dump the sauce over it, mix it all up.
8. Bake covered for about 30 minutes or less. Uncover and bake until golden on top and bubbling on edges.
9. Melt some butter in a bowl, add bread crumbs and mix well with a fork. Sprinkle over the top, then on top of that sprinkle some grated cheese over that.