3 tbsp. butter or margarine
2 tbsp. flour
1 tsp. dry mustard
1 tsp. salt
1/4 tsp. pepper
1 cup half and half
1 cup chopped walnuts or pecans
1 (20-oz.) pkg. frozen small onions, thawed and well drained
2 (9-oz.) pkgs. frozen French style green beans, thawed and well drained
12 slices cheddar cheese (mild or medium sharp)

Preheat oven to 350 degrees. In large saucepan melt butter, stir in mustard, flour, salt and pepper. Cook, stirring over low heat until bubbly; gradually stir in half and half. Stir in vegetables. In 8-inch square baking dish, place 1/3 vegetable mixture; top with 4 slices cheese. Repeat 2 times, ending with cheese and then nuts. Bake uncovered 35 minutes or until hot. Serves 8. NOTE: This dish may be assembled a day ahead and refrigerated. Increase baking time 10 minutes.