The only edible wild plants we get in my yard are (only a few) Dandelions and purslane. There are a few in the neighborhood that have puffballs, but they don't know they are edible.
I have dandelion & purslane too. My property was part of an old farm so I have a mixture of wild and planted stuff. Anything you can think of that grows in New England, I pretty much have. The mushrooms are the biggest plus. I've even found Bear's Head Tooth mushrooms. I'm constantly poking around and foraging when ever I'm outside.