The main vegetable found in a traditional ratatouille is eggplant, though zucchini, bell peppers, and tomatoes are also essential components. Ratatouille is a Provençal vegetable dish from France, known for its vibrant colors and flavors. Originating as a peasant dish, it utilizes fresh, seasonal vegetables cooked together until tender. Eggplant provides a distinctive texture, while tomatoes add juiciness and depth of flavor. Ratatouille can be served as a side dish or mains, and it has gained international recognition not only for its culinary appeal but also as a symbol of rustic French cooking.