A pressure cooker is a home cook's secret weapon when it comes to long-cooking cuts of meat and limited time to prepare them. It cooks by trapped steam pressure, so cooking time is greatly reduced and the pressurized steam forces any liquid into the food. The result is melt-in-your-mouth tender meat. These days the instant pot and similar electric pressure cookers rule. A round steak is a lean cut from the rear of the animal, and because it lacks the fat present in most steaks, it tends to become dry and tough when cooked without moisture. This recipe for round steak includes potatoes and onions, along with some bacon for flavor.