Roast on the middle rack of your oven for 20 minutes, rotating halfway through. This will ensure even cooking. Once the potatoes are tender, remove the pan and turn the oven to broil. Use oven mitts to carefully move the oven rack to the highest position. Scatter the leftover prime rib...
For years we have made at least three roast beef(s) at once in a browning cooking bag to reduce clean up. We have one as is with carrots, potatoes, gravy etc. Then we chop of shred one to use in cottage pie, soup, enchiladas etc and leave to other whole for a later (quick) ro...