Jacqueline ScarbroughJackie Scarbrough

I have a question regarding pre-cooking the spinach as in this recipe….is there a nutritional advantage to this or is it merely for taste preference?  We use spinach in our scrambled eggs or quiche every morning for breakfast but we just chop it up and add it in raw.  Just making sure we're getting the most out of our food and wondering if pre-cooking releases more nutrients somehow?  Thanks in advance.