Can you use dandelion greens from the yard? There are some nice looking dandelions in my neighborhood!

Yes! Wild dandelion is plentiful and botanically identical to those you'll find cultivated or foraged by "experts." Just make sure it looks relatively clean and give it a good wash. Also, it's best to pick young, tender, more light-green dandelion greens in the early spring, which should pull apart with a little elastic stretch. These are the most sweet and less bitter than when they grow older. Enjoy! And for more on that: http://noteatingoutinny.com/2007/05/29/reason-for-not-eating-out-in-new-york-10-oh-foraging-you-may-go/