Green Bean Casserole - cooking recipe

Ingredients

1 medium onion, diced
2 Tbsp. margarine
2 Tbsp. flour
2 Tbsp. water
1 tsp. salt
1/2 tsp. black pepper
2 Tbsp. lemon juice
2 cans green beans, drained or 4 c. green beans
3/4 c. mushrooms, sauteed
1 c. sour cream
1/2 c. shredded Cheddar cheese
1/2 c. seasoned bread crumbs

Preparation

Saute onions in margarine.
Gradually stir in flour, water, salt, pepper and lemon juice.
Simmer 3 minutes.
Add beans, mushrooms and sour cream.
Place in 1 1/2-quart casserole. Sprinkle with cheese and crumbs.
Bake at 350\u00b0 for 30 minutes.