A sun-soaked Provençal classic, this hearty vegetable gratin layers eggplant, zucchini, tomatoes, and sweet peppers with herbs de Provence under a crisp golden topping. It works beautifully as a vegetarian main or a colorful side for roasted meats.
Prep Time25 mins
Cook Time50 mins
Total Time75 mins
Servings6
Yield6 servings
Nutrition Facts
Per serving (estimated)
- 280 kcalCalories
- 18 gFat
- 5 gSaturated Fat
- 22 gCarbs
- 6 gFiber
- 9 gSugar
- 9 gProtein
- 520 mgSodium
- 580 mgPotassium
- 180 mgCalcium
- 2.5 mgIron
- 38 mgVitamin C
- 280 mcgVitamin A
Ingredients
For the vegetables
- 1 medium eggplant, cut into 1/4-inch rounds
- 2 medium zucchini, cut into 1/4-inch rounds
- 4 Roma tomatoes, cut into 1/4-inch rounds
- 1 large red bell pepper, cut into 1/2-inch strips
- 1 yellow onion, thinly sliced
- 4 garlic cloves, minced
- 1/4 cup extra-virgin olive oil
- 1 tbsp Herbes de Provence
- 1 1/2 tsp kosher salt
- 1/2 tsp freshly ground black pepper
For the crisp topping
- 1 cup fresh breadcrumbs
- 1/2 cup grated Gruyère cheese
- 1/4 cup grated Parmesan cheese
- 2 tbsp olive oil
- 2 tbsp fresh parsley, finely chopped
Directions
- Preheat the oven to 400°F (200°C) and lightly grease a 9×13-inch baking dish with olive oil.
- Toss the eggplant, zucchini, tomatoes, bell pepper, onion, and garlic with the olive oil, Herbes de Provence, salt, and pepper in a large bowl until evenly coated.
- Arrange the vegetables in the prepared dish, standing the rounds upright in alternating rows or shingling them in concentric circles for a traditional presentation.
- Cover the dish tightly with foil and bake for 30 minutes, until the vegetables have begun to soften and release their juices.
- While the vegetables bake, combine the breadcrumbs, Gruyère, Parmesan, olive oil, and parsley in a small bowl, mixing with your fingertips until the crumbs are evenly moistened.
- Remove the foil and scatter the breadcrumb mixture in an even layer across the top of the vegetables.
- Return the dish to the oven uncovered and bake for 18 to 22 minutes more, until the topping is deep golden brown and crisp and the vegetables are completely tender.
- Let the gratin rest for 10 minutes before serving so the juices settle and the topping firms up slightly.
- Serve warm as a vegetarian main with crusty bread or alongside roasted lamb, chicken, or fish.
Cook’s Notes
- Salt the eggplant slices and let them drain on a rack for 20 minutes; pat dry before assembling to draw out bitterness and excess moisture.
- A mandoline gives you evenly thin rounds that cook uniformly and look beautiful when fanned out in the dish.
- For a tangier finish, swap the Gruyère for crumbled fresh goat cheese and add it in the last 10 minutes of baking.
- Leftovers keep well covered in the refrigerator for up to 3 days and reheat best in a 350°F oven, not the microwave, to revive the crisp topping.
- Stir a spoonful of tapenade or pesto into the breadcrumb mix for an extra punch of Provençal flavor.










