Cook The Beef In A 10-Inch Skillet Over Medium-High Heat Until Well Browned, Stirring Often To Separate Meat. Pour Off Any Fat. Stir The Soup, Water, Ketchup And Worcestershire In The Skillet And Heat To A Boil. Stir In The Potatoes. Reduce The Heat To Low. Cover And Cook For 10 Minutes Or Until The Potatoes Are Tender. Top With The Cheese.