Seems elementary, but not being a big beef eater I don't know the best (easiest!) way to cook this for my husband. It's a lean 2 lb roast - wondered about cooking it in a covered iron pot in the oven? What temp and how long for rare, med-rare, med etc...seasonings?.....yes, I'm a complete idiot when it comes to the basic kind of cooking your mother should have passed down! Thanks!