I received a gift of some meat from a new packing plant located just outside Billings MT, called Marbled Meats. I've never cooked Flat Iron steak before. It looks very well marbled. How would you cook it? Is it a tender cut that should be served medium rare? I really like the taste of beef so I'm not looking for heavy marinades unless its a tough piece of meat. Thanks in advance for your ideas of how to prepare it.