Mike
I've prepared this one several times and it's always turned out well.  It is taken from 'Magic' - The Cookbook of the Junior League of Birmingham, AL.
 
French String Bean Casserole
2 (10 ounce) packages frozen French-style green beans, cooked and drained
1 (16 ounce) can bean sprouts, drained
1 (8 ounce) can water chestnuts, drained and sliced
1/2 cup grated Parmesan cheese
1/2 stick butter
2 tablespoons flour
1-1/4 teaspoons salt
1/4 teaspoon pepper
Cayenne pepper to taste
1/4 teaspoon Worcestershire sauce
1 pint whipping cream
1/2 cup slivered almonds
 
Preheat oven to 425 deg.  In a buttered 2-quart baking dish, layer beans, bean sprouts, and water chestnuts; sprinkle with cheese.  Repeat layers.  Melt butter, add flour and seasonings.  Gradually add cream and cook until thick, stirring constantly.  Pour sauce over beans.  Sprinkle with almonds.  Bake 20-30 minutes or until bubbly.  Casserole may be prepared a day ahead and refrigerated before baking.
 
lawrence