Try this homemade Lemony Green Beans Au Gratin recipe the whole family will love. Made with green beans, mayonnais, mustard and lemon juice. Easy step-b…
This Lemony Green Beans Au Gratin relies on simple, everyday ingredients such as dijon mustard, lemon juice, grated lemon peel and milk. It comes together quickly and makes 4 servings, at about 65 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