Cube steak with mushroom sauce is a rich and flavorful dish that is perfect for a special occasion. Season the steak with salt, pepper, and garlic powder. Dredge the steak in flour and fry it in a skillet with hot oil until it is golden brown and crispy. Remove the steak from the skillet and make a mushroom sauce by sautéing sliced mushrooms in butter and adding beef broth and cream. Serve the steak with the mushroom sauce and mashed potatoes for a decadent meal.