Cube steak with mushroom sauce is a delicious and elegant meal. To make it, season the steak with salt, pepper, and garlic powder. Dredge the steak in flour and fry it in a skillet with oil until it is golden brown. Remove the steak from the skillet and make a mushroom sauce with sliced mushrooms, butter, and beef broth. Serve the steak with the mushroom sauce and roasted vegetables.