01 - Place chicken breasts in the bottom of the slow cooker in a single layer.
02 - In a medium bowl, combine cream cheese, shredded mozzarella, Parmesan, sour cream, half of the bacon, spring onions, garlic, onion powder, garlic powder, Italian seasoning, salt, and pepper. Mix until thoroughly blended.
03 - Spread the cheese mixture evenly over each chicken breast, ensuring complete coverage.
04 - Cover and cook on LOW setting for 5 hours, or until chicken reaches an internal temperature of 165°F and is tender throughout.
05 - Sprinkle remaining bacon and fresh herbs over the top just before serving. Serve hot alongside rice, mashed potatoes, or steamed vegetables.