Ratatouille (Oven-Baked, Layered Style)

Description
This oven-baked, layered ratatouille is a beautifully rustic French-inspired dish that turns simple vegetables into something elegant and full of flavor. Thin slices of zucchini, squash, eggplant, and tomatoes are arranged in a stunning pattern over a rich tomato-herb sauce, then baked until tender and lightly caramelized. It’s healthy, colorful, and perfect as a main dish or a side.

Ingredients

For the Vegetable Layer:

1 zucchini (thinly sliced)
1 yellow squash (thinly sliced)
1 eggplant (thinly sliced)
2–3 tomatoes (thinly sliced)

For the Sauce Base:

2 tablespoons olive oil
1 small onion (finely chopped)
3 cloves garlic (minced)
1 cup crushed tomatoes
1 tablespoon tomato paste
1 teaspoon dried thyme
1 teaspoon dried basil
Salt and pepper to taste

For Topping:

1–2 tablespoons olive oil
Fresh rosemary or thyme
1/4 cup grated Parmesan cheese (optional)
Fresh parsley (for garnish)

Instructions

Step 1: Prepare the Sauce
Heat olive oil in a pan over medium heat. Add the finely chopped onion and sauté for about 4–5 minutes until soft and translucent. Stir in the minced garlic and cook for another minute until fragrant. Add the crushed tomatoes, tomato paste, dried thyme, dried basil, salt, and pepper. Mix well and let the sauce simmer gently for 5–10 minutes until it thickens slightly. Remove from heat.

Step 2: Preheat the Oven
Preheat your oven to 375°F (190°C). Lightly grease a baking dish or use a shallow casserole dish.

Step 3: Assemble the Base
Spread the prepared tomato sauce evenly across the bottom of the baking dish. This layer adds moisture and rich flavor to the vegetables as they bake.

Step 4: Arrange the Vegetables
Layer the sliced zucchini, yellow squash, eggplant, and tomatoes in an overlapping pattern (like a spiral or rows) on top of the sauce. Alternate the vegetables to create a colorful, visually appealing design. Keep the slices tightly packed so they cook evenly and hold their shape.