Strip Steaks with Mushroom Gravy 4 strip steaks Brown steaks, two at a time, in a 12-inch skillet over medium-high heat, for about 3 minutes per side. Set the steaks aside and keep warm. Prepare Mushroom Gravy. Mushroom Gravy 1 cup beef stock 1 can cream of mushroom soup 1 (4 ounce) can sliced mushrooms, drained Salt and pepper to taste Scrape bottom of skillet to loosen steak drippings. Add the beef stock, soup and mushrooms to the skillet and stir. Reduce to medium-low heat. Add the four steaks back into the skillet, cover and simmer for 8 minutes. Uncover and cook until mushroom gravy has reduced by 1/3 and thickened. Serve with rice or mashed potatoes.