Rinse in cool water and chop or cut into bite sized pieces. (You can stop here if you like and serve as a side salad!)
Add a tablespoon or two of olive oil to a skillet and saute until wilted. If you don't like crunchy stalks, you might want to add the stalks first and cook a few minutes before adding the greens. The greens will cook faster. Feel free to add salt, pepper and garlic to taste.