This Crockpot Cheesesteak Potato Casserole is a hearty and comforting dish combining savory ground beef or sliced steak with tender diced potatoes, all simmered in a flavorful beef broth sauce with Worcestershire and garlic seasoning. Topped with melted mozzarella or provolone cheese, this easy slow cooker casserole makes a perfect weeknight meal with minimal effort.