Try this homemade Homemade Green Bean And Mushroom Casserole recipe the whole family will love. Made with Onion, onion, buttermilk and flour. Easy step-…
This Homemade Green Bean And Mushroom Casserole relies on simple, everyday ingredients such as onion strings:, whole large onion, buttermilk and all-purpose flour. It comes together quickly and makes 4 servings, at about 1998 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.
It's versatile enough for an easy weeknight dinner yet satisfying enough for guests at the weekend. Serve it with your favorite sides, and keep any leftovers for a quick meal the next day.
Updated Jun 30, 2026