Classic Zucchini Gratin

This classic French recipe is incredibly simple to make.


  • 6 tablespoons olive oil
  • 10 garlic cloves, chopped
  • 1 onion, chopped
  • 3 cups San Marzano canned tomatoes, crushed
  • 1 teaspoon chili flakes
  • 2 teaspoons dried oregano
  • Salt to taste
  • 2 tablespoons fresh basil, chopped
  • 5 zucchini, thinly sliced
  • 2 cups Parmesan
  • 1 cup breadcrumbs


  1. Prepare a 9x9 baking dish and preheat oven to 375°F.
  2. Place 2 tablespoons of olive oil in a medium sauce pot on medium heat. Add garlic and and onions and sauté for 5 minutes. Add crushed tomatoes, chili flakes and oregano, and simmer for 15 minutes. Season with salt and finish with basil. Remove from heat and reserve.
  3. Add 3 tablespoons of olive oil to a large sauté pan, and place on medium-high heat. Place a layer of zucchini in the sauté pan and brown on each side, about 1 minute per side. Remove and season with salt. Repeat until all of the zucchini are finished.
  4. In a casserole pan, add a layer of marinara sauce, then a layer of zucchini, another layer of sauce, then a layer of Parmesan. Repeat until all of the zucchini is used up. Top with Parmesan and breadcrumbs. Bake for 15 minutes. Remove and let rest for 15 minutes before serving.