in the slow cooker insert, separating it lightly with your hands so the slices are not packed too tightly.
2. In a small bowl, stir together the barbecue sauce, brown sugar, and Dijon mustard until smooth, then pour the mixture evenly over the ham.
3. Cover and cook on low for 2 to 3 hours, stirring once or twice if convenient, until the ham is hot and fully coated in the sweet and tangy sauce.
