String Bean Casserole - cooking recipe

Ingredients

1 can string beans
1 can cream of mushroom soup
1 can onion rings
1 small can chopped mushrooms, drained

Preparation

Mix string beans, mushroom soup and chopped mushrooms together in casserole dish.
Top with onion rings.
Bake at 300\u00b0 for 15 minutes.
Serves 6.