We have a number of large piles of rotted wood chips on our land from about five years old when we had to clear a few trees. They produced quite a few two years ago, then nothing last year with the dry fall in our area. We're happy to see them again.
It looks like white oyster mushroom which are super delicious. Theres a mushroom app called picture mushroom, where you take a picture and it tells you about it, so id check that first. If you like mushrooms then you're lucky to have these growing here!
Yes, they are delicious. A pain to clean though, there must be a trick to it that I haven't figured out yet.