Cover and cook for 45 minutes or until the greens are tender. Check the water level during cooking and add more if needed.
Taste and add additional salt if needed.
Notes
You'll need enough water to cover the turnips by about an inch once they've wilted down into the pot. I usually start with about 2 quarts and adjust as needed.
Cool the greens completely and store them in an airtight container in the refrigerator. They'll keep well for up to 3 days.
May also be frozen in an airtight container for up to three months. Allow them to thaw overnight in the refrigerator and reheat on the stovetop over low heat or in the microwave.