1. Start by seasoning the chicken breasts. Rub the chicken with the olive oil, garlic powder, smoked paprika, salt, and pepper. This blend of spices will add a delightful depth of flavor to the grilled chicken.

2. Preheat your grill to medium heat. Place the seasoned chicken breasts on the grill and cook for 5-6 minutes per side, brushing them with the BBQ sauce during the last few minutes of cooking. This will allow the sauce to caramelize and create a mouthwatering glaze.

3. As the chicken finishes cooking, top each piece with a slice of mozzarella cheese. Close the grill lid and let the cheese melt for an additional 1-2 minutes, or until it’s perfectly gooey and melted.

4. While the chicken is grilling, lightly toast the sandwich buns on the grill until they’re golden brown and crispy. This step adds a delightful crunch and helps to hold the sandwiches together.

5. Toasting the buns is an essential step in creating the perfect Grilled Mozzarella BBQ Chicken Sandwich. The lightly crisped exterior provides a sturdy foundation to support the juicy chicken and melted cheese, preventing the bun from becoming soggy and falling apart.

6. Simply place the sandwich buns, cut-side down, directly on the grill grates for 1-2 minutes, or until they’re lightly golden brown. Keep a close eye on them to prevent burning.

7. Now that the chicken, cheese, and buns are ready, it’s time to assemble the Grilled Mozzarella BBQ Chicken Sandwiches. Place the grilled chicken with the melted mozzarella on the toasted buns, and add any desired toppings such as lettuce, tomato slices, red onion, or pickles.

8. The combination of the juicy, smoky grilled chicken, the tangy BBQ sauce, the melted mozzarella, and the crisp, toasted bun creates a symphony of flavors in every bite. The optional toppings add a refreshing crunch and balance to the overall sandwich.

9. Serve the Grilled Mozzarella BBQ Chicken Sandwiches warm, with any of your favorite summer sides like coleslaw, potato salad, or corn on the cob. These sandwiches are sure to be the star of your next backyard barbecue or outdoor gathering.