The Best Green Bean Casserole! You make your own cream of mushroom soup with portobello mushrooms and add sweet yellow onions and garlic. Then you stir in perfect fresh green beans and top it with crispy french fried onions!
This Homemade Green Bean Casserole, a traditional green bean casserole that is made from scratch with fresh green beans and a homemade mushroom sauce and topped with french fried onions, will be a hit with your family and friends on Thanksgiving. There are no canned soups in this Thanksgiving Green Bean Casserole.