Why is my butternut squash green?
Similarly, you may ask, can you eat butternut squash when it's green?
It is so easy to over plant winter squash, especially a variety like butternut. Those butternut squash vines produce like crazy. You can easily end up with 30 mature squash and still have some little green ones coming on. If you have an abundance of butternut squash, enjoy them green as well as fully ripe.
Moreover, is it OK to eat unripened butternut squash?
Unripe winter squash taste different from ripe, but you can treat unripe, peeled butternut like summer squash with good results. My personal preference is to pluck any later flowers rather than let unripe fruit develop. These can be eaten raw or stuffed and cooked (my go-to method is seasoned cream cheese and chive).
You should start by checking the rind. It should be firm, fairly even in color, and without any mushy spots. Of course, if there are only a few small squishy or damaged spots, you can cut them out as you do with other veggies.