I want to know why my yellow squash is covered in brown spots. I took a close look at the photos but it still looks similar. A:
It's a result of dying, actually. When dry it usually has good, if not excellent color, but when wet, it will be dried out and turn light brown or brownish. If it's not in the fridge yet, and your weather allows a few days before you can cook it without developing the spots, then you could serve it with water. It may be ok if you do use water to cook it because if you cook in vegetable broth instead of water there won't be dried out spots.