Creating the Slow Cooker Parmesan Garlic Chicken Sandwich is a breeze when you follow these simple steps:

1. Prepare the Slow Cooker: Spray the slow cooker with cooking spray or lightly grease it with olive oil.

2. Season the Chicken: Place the boneless, skinless chicken breasts in the slow cooker. Season with salt, black pepper, and Italian seasoning.

3. Add Garlic: Sprinkle the minced garlic over the chicken, ensuring even coverage.

4. Pour in Chicken Broth: Add the chicken broth to the slow cooker, allowing the flavors to meld together as it cooks.

5. Slow Cook: Cover the slow cooker and set it to cook on low for 4-6 hours or on high for 2-3 hours. The chicken should be tender and easily shredded.

6. Shred the Chicken: Once cooked, remove the chicken from the slow cooker and shred it using two forks. Return the shredded chicken to the slow cooker.

7. Add Parmesan Cheese: Stir in the grated Parmesan cheese, mixing well until the chicken is evenly coated with the cheesy goodness.

8. Melt Mozzarella: Top the mixture with shredded mozzarella cheese, cover, and let it sit for an additional 10 minutes until the cheese is melted and bubbly.

9. Prepare the Rolls: While the cheese melts, slice the sandwich rolls or hoagie buns in half and lightly toast them if desired.

10. Assemble the Sandwiches: Spoon the cheesy chicken mixture onto the bottom half of each roll. Top with fresh parsley for added flavor and garnish.

11. Serve: Place the top half of the roll on each sandwich and serve hot.

By following these steps, you’ll have a mouthwatering Slow Cooker Parmesan Garlic Chicken Sandwich ready to delight your taste buds!