This post brought to you by Sam's Club. All opinions are 100% mine. You may love it. You may hate it. But there's no denying it: Green Bean Casserole is the dish that makes a holiday dinner complete. Years ago, some loving granny must have thrown together the 3 ingredients she had left in the pantry: Cream of Mushroom Soup, Green Beans and French Onions. And she produced a tasty casserole that has become a holiday tradition for families ...