01 - 
                Lightly grease the interior of the slow cooker with butter or non-stick cooking spray to prevent sticking.
              
              
              
                02 - 
                Arrange a layer of sliced potatoes at the base of the slow cooker. Top with diced ham, chopped onion, a sprinkle of salt and pepper, and a portion of the shredded cheese. Continue layering the remaining ingredients in the same order, finishing with cheese on top.
              
              
              
                03 - 
                Pour the undiluted cream of mushroom soup evenly over the layered ingredients. Use a spatula or spoon to gently spread and ensure the surface is well-coated.
              
              
              
                04 - 
                Secure the lid and cook on LOW for 6 to 7 hours, or until potatoes are fork-tender and the mixture is bubbling. Around the 4-hour mark, check the consistency; if necessary, add a small splash of water or milk to prevent drying.
              
              
              
                05 - 
                Spoon the mixture into bowls while warm, ensuring to scoop through all layers for a serving of creamy, cheesy ham and potatoes.