In New England, rutabaga is often called turnip, which is a related but different vegetable. This is the most common preparation, often to accompany a Sunday roast beef or chicken during cold-weather months. In general, turnips are smaller, whiter inside, and often sweeter, while rutabagas are often bigger, yellower inside, and they usually have more of a kind of bitterness that complements a rich dinner.
The classification of turnips and rutabagas is confusing, but you might find it interesting. If so, please see New England Heirloom Turnips & Rutabagas.