Beef Rub, some bread crumbs and most of the onions. I fried the meat to well done then put the patties aside under foil while I fried the sliced mushrooms. When they had a good sear I put the rest of the onions in and a couple of ounces of red wine. I cranked up the heat and reduced the wine. When I had a nice sauce I plated the patties and spooned the sauce over them, potatoes and vegetables to round out the plate. Absolutely delicious!