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Ratatouille Gratin

In this recipe, I have added slices of the various vegetables typically included in ratatouille, a Provençal French dish, to a pan in a circular arrangement and then topped it with breadcrumbs and cheese (a gratin) making for a simple and aesthetically pleasing side.
Course Side Dish, Vegetable
Cuisine French
Keyword eggplant, onions, squash, summer, tomato, zucchini
Prep Time 10 minutes
Cook Time 25 minutes
Servings 6
Calories 232kcal


  • 3 tablespoons extra virgin olive oil
  • 1 tablespoon chopped fresh thyme
  • 2 cloves garlic, chopped
  • 1 medium yellow onion, thinly sliced
  • 4 medium Roma tomatoes, thinly sliced
  • Kosher salt, to taste
  • 3 medium Chinese eggplants, thinly sliced
  • 2 large zucchini, thinly sliced
  • 2 large summer squash, thinly sliced
  • 3 tablespoons unsalted butter
  • ½ cup plain breadcrumbs
  • ¼ cup grated Parmesan cheese


  • In a small saucepan over medium-low heat, add the olive oil, half the thyme and the garlic. Cook until the garlic is golden brown, about 5 minutes. Strain the oil into a small bowl and discard the thyme and garlic.
  • In a medium sauté pan over medium heat, add 1 tablespoon of the garlic thyme oil and heat through. Add the onion and sauté, stirring occasionally, until golden brown and slightly caramelized, about 10 minutes.
  • Arrange the sliced tomatoes on a paper towel-lined baking sheet and sprinkle with salt. Pat the tomatoes dry.
  • Preheat oven to 400ºF (200ºC).
  • Add the onions to the bottom of a 12-inch oval ceramic dish. Alternate the slices of eggplant, tomato, zucchini and summer squash in the ceramic dish in a spiral formation. Drizzle the remaining olive oil over the top.
  • Heat a medium non-stick sauté pan over medium heat, add the butter and allow to melt. Add the breadcrumbs and sauté, stirring constantly, until the breadcrumbs are golden brown, about 5 minutes. Sprinkle over the top of the vegetables and top with the Parmesan cheese.
  • Bake until the top is golden brown, about 20 minutes.


Calories: 232kcal | Carbohydrates: 22g | Protein: 6g | Fat: 15g | Saturated Fat: 5g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 7g | Trans Fat: 0.2g | Cholesterol: 19mg | Sodium: 152mg | Potassium: 763mg | Fiber: 6g | Sugar: 9g | Vitamin A: 898IU | Vitamin C: 34mg | Calcium: 100mg | Iron: 2mg