Take the burgers out and fry them up in pan. When cooked remove from pan and set aside. Use same pan to do your mushroom onion gravy. 1TBSP olive oil 2 garlic cloves, minced 1/2 onion, chopped Handful mushrooms , sliced 4TBSP flour 2CUPS (500 ml) beef broth / stock 2TSP dijon mustard 2TSP Worcestershire sauce Salt/pepper Add the oil, cook onions, mushrooms, & garlic. Til onions are cooked and mushrooms are soft. Stir in the flour til well combined. Add your stock bring heat up to a boil, stirring frequently til thickened. Add on your mustard, Worcestershire sauce & salt/pepper. Reduce heat and add back in your burgers. Serve over a lump of mashed potatoes.Lucky saids Peak a Boo haha. We had some quick pickle with dinner!