Mushrooms

I looked at my front lawn today. I know, I don't do it very often. I just drive past it. Only reason I looked was because as I was pulling out of the driveway, I noticed something at the edge. I thought it was trash. So I decided to go take a look and found it was these mushrooms. They are growing all along the the edge of the driveway.

Anyone know what kind of mushrooms these are, or more importantly, are they edible?