Try this homemade Heirloom Tomato Gratin recipe the whole family will love. Made with tomatoes, salt, extra virgin olive oil and sweet onion. Easy step-…
This Heirloom Tomato Gratin relies on simple, everyday ingredients such as sea salt, extra virgin olive oil, whole wheat breadcrumbs and minced garlic. It comes together quickly and makes 4 servings, at about 380 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