A vegetable casserole is a baked dish that typically combines a variety of vegetables, such as carrots, broccoli, and bell peppers, with a creamy or cheesy sauce. It often includes ingredients like rice or pasta to add substance and can be seasoned with herbs and spices for flavor. This dish is popular for its versatility, as it can be customized based on available ingredients or personal preferences. Vegetable casseroles are often served as a side dish or a main course, making them a nutritious option for both vegetarians and meat-eaters alike.