Broccoli with Mornay Sauce

Grrrrrgh!
Course : Broccoli
From: HungryMonster.com
Serves: 4
 

Ingredients:

1 1/2 pounds broccoli
12 teaspoons salt
1/2 cup onion -- finely chopped
1 teaspoon nutmeg
4 tablespoons butter
1/2 cup parmesan cheese -- grated
3 tablespoons all-purpose flour
1/4 cup bread crumbs
2 cups milk
1/2 cup swiss cheese -- grated
 

Preparation:

Preheat oven to 375 degrees. Cut broccoli into 2" flowerettes. Cook broccoli in boiling salted water for about 5 minutes (until almost tender). Rinse under cold water. Drain well. Saute the onion in half the butter for about 3 minutes using a medium sauce pan. Add flour and stir constantly over low heat for 1 minute. Add milk while whisking constantly. Cook over high heat for about 5 minutes as the mixture thickens. Stir in the swiss cheese, salt, pepper and nutmeg. Coat the bottom of the casserole dish with sauce. Arrange the broccoli flowerettes over the sauce. Pour the remaining sauce over the broccoli. Combine the parmesan cheese and the bread crumbs. Sprinkle over the casserole. Melt the remaining half of the butter and sprinkle over the casserole. Bake, uncovered, for 20 to 25 minutes or until lightly browned.