Yup,
I tend to put some mixed herbs in and some finely diced onions (uncooked for crunch), mum added some crispy fried bacon once and that was nice...
Boil the nettles for about 5 mins, and drain for twenty, they're a bit like cabbage, they really hold the moisture. If you want you can press them to squeeze out as much as water as you gan, but they can become a little like paste doing it that way.