I'll be honest, there's only a few really delicious mushrooms... most of them either don't taste like much on their own or they have a rather unpleasant texture... often both! They're still very healthy though, so there's that at least.
I have rarely ever eaten foraged mushrooms because it's just so much of a hassle to pick enough good ones and then make sure each one is free of pests or mold or what-not. Most mushrooms quickly become a breeding ground for little larvae so you might end up throwing most of what you've collected out in the end... at least that's my experience so far.