Creamy Swiss Steak is a classic comfort food dish made with tenderized round steak, smothered in a creamy mushroom and onion gravy. The steak is first seared to lock in the flavors, then slow-cooked in the oven until it becomes melt-in-your-mouth tender. The creamy gravy adds richness and depth to the dish, making it perfect to serve over mashed potatoes or rice.