Green Bean Casserole - cooking recipe

Ingredients

chopped onion to taste
1/4 c. margarine
2 cans green beans, drained
8 oz. sour cream
grated cheese

Preparation

Saute onion in margarine until tender.
Add beans and sour cream. Bake at 325\u00b0 for 30 minutes. Top with cheese and heat until cheese melts.