Try this homemade Vegetable Gratin Oh La recipe the whole family will love. Made with olive oil, sweet onion, red bell pepper and zucchini. Easy step-by…
This Vegetable Gratin Oh La relies on simple, everyday ingredients such as olive oil, small sweet onion, medium zucchini, diced and large ear of corn. It comes together quickly and makes 4 servings, at about 312 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