Green Beans with Cheese Sauce

1 Tbsp butter
1 Tbsp flour
1/2 tsp salt
1/2 tsp sugar
1/8 tsp pepper
1/4 cup milk
1/2 tsp onion, grated
1/2 cup sour cream
1 can French cut green beans, drained
1 - 1 1/2 cups mozzarella cheese, grated
1/2 cup Ritz cracker crumbs

In small pan, blend butter, flour, salt, pepper, and sugar, stirring until bubbling.  Add milk, remove from heat and stir in onion and sour cream.  Combine sauce with green beans and cheese.  Place in a dish.  Set aside.  Sprinkle crumbs on top.  Bake uncovered at 400 for 20 min.

6 servings
(I usually triple the recipe and place in a 9x13 dish.)