To make steak patties, mix first 12 ingredients and patty out into 8 equal serving. Brown patties in olive oil and set aside.
To make gravy, saute mushrooms in drippings left over from browning meat patties. Then add remaining gravy ingredients and bring to a simmer. Place patties and gravy mixture in a baking dish, cover with foil and bake at 350 for 1 hour.