Try this homemade Summer Vegetable Gratin recipe the whole family will love. Made with olive oil, onion, zucchini and salt. Easy step-by-step instructio…
This Summer Vegetable Gratin relies on simple, everyday ingredients such as olive oil, small onion, diced, salt and pepper and frozen corn. It comes together quickly and makes 4 servings, at about 1471 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