I serve this flavorful roast with its rich mushroom gravy with garlic mashed potatoes and either spinach or sautéed carrots. I have also found that when I want to deglaze a pan and scrape up the brown bits, I don't use a non-stick pan, it is much better and more flavorful that way. I tried to say in the recipe that you can use a combo of the shrooms if you wish, but it would not let me. Prep time is approximate. This recipe is adapted from Bon Appetit magazine, Feb 1997.