Roasted vegetables are a popular dish made by cooking various types of vegetables in an oven until they become tender and slightly caramelized. Common vegetables used include carrots, bell peppers, zucchini, and potatoes. The roasting process enhances their natural flavors and adds a delicious, crispy texture. To prepare roasted vegetables, they are typically cut into uniform pieces, tossed with olive oil, salt, and pepper, and spread out on a baking sheet. The vegetables are then baked at a high temperature, usually around 400°F (200°C), for about 20 to 30 minutes, depending on the type and size of the vegetables.