Try and pick younger smaller turnips when cooking for best taste. These small turnips will have a sweeter and milder taste.
Remember when you cook a turnip it will naturally reduce the bitterness than if you eat it raw.
Roast your turnips. You can simply peel and dice up turnups. Drizzle them with some good olive oil, add some fresh garlic, salt and pepper to taste, and roast.
You can eat them on their own or add them to other types of vegetables like potatoes, carrots, and broccoli.
Using turnips in a soup. You can substitute potatoes for turnips in any types of soups. You can also keep potatoes and turnips in the same soup.