|Onion||1 Small, grated|
|Sour cream||1 Cup (16 tbs)|
|Canned french cut green beans||32 Ounce, drained (Two 16 Ounce Each Cans)|
|Swiss cheese||1 Tablespoon, grated|
Preheat oven to 350°.
Grease casserole dish.
Melt butter and stir in flour, salt, pepper, sugar, and onion; gradually add sour cream.
Cook, stirring until thickened.
Mix in beans, put in casserole, and sprinkle with cheese.
Heat until cheese melts and browns slightly.