Forget the canned mushroom soup! Have you ever made a green bean casserole from scratch? This recipe for green bean casserole is surprisingly easy, made with just a few fresh and simple ingredients. It comes from one of my favorite chefs — Thomas Keller of the French Laundry, and it’s the perfect way to “Wow” your family and friends on Thanksgiving or Christmas day. So throw away those cans and fake fried onions. This is a green bean casserole from scratch that you’ll pass down through generations.