You can also eat them raw as a salad. They should be really young and tender, only a few inches tall. And if you want the plant to live, just pick the greens and don't pull the roots. They come back! Just rinse them thoroughly and they're ready!
You can mix the dandelion greens with other salad greens if you like. I prefer olive oil and lemon juice on them or only lemon juice. Keep it simple and healthy!