Green Bean Casserole - cooking recipe

Ingredients

1 can French cut green beans
1 can cream of mushroom soup
1 can French fried onion rings

Preparation

Butter
dish and add mixture of beans and soup.
Cover. Place in
preheated 400\u00b0oven for 10 minutes until the mixture bubbles. Reduce heat to 300\u00b0 for 20 minutes.
Add onion rings and cook 10 minutes more.
Remove from oven.