Why You’ll Love This Recipe

• Authentic Provençal flavors with a rich, savory sauce base.
• A visually stunning presentation that’s surprisingly simple to create.
• The perfect recipe to utilize an abundance of summer vegetables like zucchini, eggplant, and tomatoes.
• Naturally vegan, gluten-free, and packed with nutrients.
• A versatile dish that works as a main course or a side.

Equipment You’ll Need

• 10 or 12-inch oven-safe skillet (cast-iron is ideal)
• Mandoline slicer (highly recommended for uniform slices)
• Sharp knife and cutting board
• Medium saucepan
• Spatula

Ingredients

• 1 medium eggplant (about 1 lb), sliced into 1/8-inch thick rounds
• 2 medium zucchini (about 1 lb total), sliced into 1/8-inch thick rounds
• 2 medium yellow squash (about 1 lb total), sliced into 1/8-inch thick rounds
• 4-5 Roma tomatoes, sliced into 1/8-inch thick rounds
• 2 tbsp olive oil, for the sauce
• 1 large yellow onion, finely chopped
• 2 red or yellow bell peppers, finely chopped
• 4 cloves garlic, minced
• 1 (28-ounce) can crushed tomatoes
• 1 tbsp fresh thyme leaves, divided
• 1 tsp dried herbs de Provence
• Handful of fresh basil leaves, chopped
• Salt and freshly ground black pepper to taste
• 2 tbsp olive oil, for drizzling

Instructions

1. Preheat your oven to 375°F (190°C).
2. Prepare the vegetables: Thinly slice the eggplant, zucchini, yellow squash, and Roma tomatoes into uniform 1/8-inch rounds. A mandoline is highly recommended for consistency. Set aside.
3. Make the sauce (piperade): In a medium saucepan or your oven-safe skillet, heat 2 tablespoons of olive oil over medium heat. Add the chopped onion and bell peppers and sauté until softened, about 8-10 minutes. Add the minced garlic and cook for another minute until fragrant.
4. Stir in the crushed tomatoes, 2 teaspoons of fresh thyme leaves, herbs de Provence, salt, and pepper. Bring to a simmer and cook for 5-7 minutes, allowing the flavors to meld. Stir in the fresh basil.
5. Assemble the ratatouille: If you cooked the sauce in a separate pan, spread it evenly across the bottom of your 10 or 12-inch oven-safe skillet or a similar-sized baking dish.
6. Arrange the sliced vegetables on top of the sauce in an alternating pattern (e.g., eggplant, tomato, zucchini, yellow squash), overlapping them to create a spiral or tightly packed rows. Start from the outer edge and work your way to the center.
7. Drizzle the arranged vegetables with the remaining 2 tablespoons of olive oil. Sprinkle with the remaining fresh thyme leaves, and season generously with salt and pepper.
8. Bake: Cut a piece of parchment paper to fit inside the skillet and lay it directly on top of the vegetables. This helps steam them and prevents them from burning. Bake for 45 minutes.
9. Remove the parchment paper and continue to bake for another 20-30 minutes, or until the vegetables are tender and lightly browned on the edges.
10. Rest and serve: Let the ratatouille rest for at least 10 minutes before serving. This allows the flavors to settle. Garnish with more fresh basil or thyme if desired.

Expert Cooking Tips

• Uniformity is Key: The most important step for both cooking and presentation is slicing the vegetables to the same thickness. A mandoline is your best tool for this.
• Don’t Skimp on Seasoning: Vegetables release water as they cook, so be sure to season the sauce and the top of the vegetables generously with salt and pepper.
• Use Ripe, Firm Produce: Select vegetables that are firm to the touch. This will help them hold their shape during slicing and baking.
• Parchment Paper Trick: Don’t skip the step of covering the vegetables with parchment paper. It steams them to perfection first, ensuring they are tender throughout before the tops get a chance to brown.

Substitutions and Variations

Feel free to use different varieties of summer squash. If you don’t have herbs de Provence, a mix of dried thyme, oregano, and rosemary works well. For the sauce, you can use a can of diced tomatoes (pulsed a few times in a blender) instead of crushed.

Common Mistakes to Avoid

The most common mistake is slicing vegetables unevenly, which leads to some pieces being mushy while others are undercooked. Another pitfall is under-seasoning; the simple ingredients rely on proper seasoning to shine. Finally, avoid overcrowding the pan; use a large enough skillet to allow the vegetables to cook evenly rather than just steam.

Serving Suggestions

Serve hot as a main course with a side of crusty baguette for soaking up the delicious sauce. It’s also an excellent side dish for grilled fish, roasted chicken, or lamb chops. For a hearty vegetarian meal, serve it over creamy polenta, couscous, or quinoa. A dollop of goat cheese or a sprinkle of Parmesan on top is also a wonderful addition.

Storage and Reheating Tips

Ratatouille tastes even better the next day! Store leftovers in an airtight container in the refrigerator for up to 5 days. Reheat gently in a 350°F oven or in the microwave until warmed through. It can also be enjoyed cold or at room temperature.

Frequently Asked Questions

What’s the difference between this ratatouille and the stew version?

This style is technically a ‘tian’ or ‘confit byaldi,’ which emphasizes the artful arrangement of sliced vegetables baked over a sauce. A traditional ratatouille is a stew where the vegetables are typically cubed and simmered together, resulting in a more rustic, combined texture.

Can I make this dish ahead of time?

Absolutely. You can assemble the entire dish a day in advance, cover it, and refrigerate it. Let it sit at room temperature for 30 minutes before baking as directed. It’s also fantastic for meal prep as the flavors deepen overnight.

Can I freeze ratatouille?

Yes, you can freeze it. Let it cool completely, then store it in a freezer-safe container for up to 3 months. Thaw it overnight in the refrigerator and reheat in the oven. The texture of the vegetables may be slightly softer after freezing.

Conclusion

This Classic French Ratatouille is a true celebration of summer’s bounty. It’s a testament to the idea that with a little time and care, humble vegetables can become the star of the show. Whether you’re hosting a dinner party or simply looking for a delicious way to enjoy your garden haul, this recipe is sure to impress. Enjoy the vibrant colors, the rich aromas, and the deeply satisfying flavors of Provence in your own kitchen.