Try this homemade Baked Zucchini Gratin recipe the whole family will love. Made with zucchini, onion, butter and mozzarella cheese. Easy step-by-step in…
This Baked Zucchini Gratin relies on simple, everyday ingredients such as zucchini, thinly sliced, onion, thinly sliced, butter, melted and divided and shredded mozzarella cheese. It comes together quickly and makes 4 servings, at about 482 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