Most gardeners consider Ground-elder (Aegopodium podagraria) a most annoying weed. I have to admit, once you have it in your garden, it's there to stay!
But it's also a very tasteful and healthy vegetable. Basically you can use it in the same ways you cook with spinach. Cooked, stir-fried or raw as a salad.
Pluck the young leaves from Februari to May, before the plant starts to bloom (at least in my part of the world). You will be pleasantly surprised by this healthy, tasty and free vegetable from your own garden!