Homemade Green Bean Casserole is a yummy from-scratch green bean casserole that uses fresh green beans and homemade mushroom sauce! Perfect Thanksgiving side dish recipe!
Meanwhile, in a large skillet on medium heat, add butter, onions, mushrooms and seasonings. Cook for 5 min. Then, sift in flour one tablespoon at a time while constantly stirring to avoid lumps, alternatively with 1/4 cup of the half and half and milk until all of the milk and flour is well combined and has become a creamy sauce. i.e. Add some flour, stir, add some milk, stir, repeat until ALL of the flour, milk and half and half is well combined. Note: Do not add all of the flour at one time without adding the milk and half and half or it will become pasty.
Store covered in the refrigerator for up to 5 days or freeze for up to 6 months.