2 tablespoons butter
2 tablespoons flour
1 1/4 cups milk
1 egg yolk, slightly beaten
1/4 teaspoon dry mustard
1/4 teaspoon salt
1/8 teaspoon ground black pepper
/4 to 1/2 cup shredded Cheddar cheese
2 packages (10 ounces each) frozen broccoli spears cooked and drained
sliced cooked turkey, about 1 pound, enough for 6 servings
2 tablespoons grated Parmesan cheese
Prep Time: 10 minutes
Cook Time: 360 minutes
Total Time: 370 minutes
Melt butter in a 1- to 2-quart saucepan over medium heat. Add flour and cook, stirring, for about 1 minute. Remove from the heat.
In a small bowl, whisk the egg yolk with the milk. Gradually blend the milk mixture into the flour and butter mixture. Return to the heat. Add dry mustard, salt, and pepper. Cook, stirring constantly, until mixture is thickened and begins to boil. Add Cheddar cheese and cook, stirring, until cheese is melted.
Arrange hot broccoli pieces and turkey in 2-quart baking dish. Spoon the sauce between layers and over the top. Sprinkle with Parmesan cheese. Broil the casserole (about 500° F) about 4 inches from heat until cheese is browned, about 3 to 4 minutes.