Have you tried lamb's quarters? No, not a lamb leg....the leafy veggie (Chenopodium album)! I was at the farmer's market last weekend and a lady was buying several bunches of them and extolling their virtues. I love greens so of course I grabbed some to try. They were soooooo yummy sauteed up quickly with some toasted sesame oil and garlic. One of my new faves.
According to online sources, it has a ton of vitamins A, C and calcium. It also has oxalates which I guess can be bothersome to some people.
photo from plant.photos.net