1️⃣ Place 2 large boneless, skinless chicken breasts on a cutting board. Use a sharp knife to slice the chicken breasts horizontally to create 4 evenly-sized chicken cutlets. If needed, pound thicker areas with a tenderizer or rolling pin until the cutlets are evenly thick all over. 🔪

2️⃣ Generously sprinkle 1 tablespoon Italian seasoning, salt, and freshly cracked black pepper on all sides of the chicken cutlets, coating the chicken well. Set aside. 🧂

3️⃣ Heat a large skillet over medium-high heat. When the pan is warm, add 1 tablespoon avocado oil and swirl the pan to distribute the oil across the entire surface. Continue heating the pan until the oil is hot and shimmery. 🍳

4️⃣ When the oil is hot, place the seasoned chicken cutlets in the skillet. Sear the chicken for 3 to 5 minutes, then flip each cutlet over. Sear the chicken for another 3 to 5 minutes, until the internal temperature of the chicken reaches 160°F (71°C). 🌡️

5️⃣ Once the chicken reaches the target temperature, carefully transfer the cutlets to a large plate and set aside. 🍗

6️⃣ Place the halved ciabatta rolls in the skillet with the inside of the rolls facing down. Work in batches as needed, depending on the size of the skillet. Toast the ciabatta rolls for 1 to 2 minutes, just until the rolls are lightly golden. Remove the toasted rolls from the skillet and repeat with any remaining rolls. 🥖

7️⃣ Set the toasted rolls aside. Keep the skillet warm over medium heat. 🔥

To Assemble the Sandwiches:

8️⃣ Place the ciabatta rolls on a cutting board, with the insides of the rolls facing up. 📜

9️⃣ Cover one ciabatta roll half per sandwich with 1 tablespoon mayonnaise, using 4 tablespoons mayonnaise total. Spread the mayonnaise out to cover the entire surface of the rolls. 🥄

🔟 Cover the other ciabatta roll half per sandwich with 1 ¼ tablespoons pesto, using ⅓ cup pesto total. Spread the pesto out to cover the entire surface of the rolls. 🌿

1️⃣1️⃣ Place one chicken cutlet on top of each ciabatta half coated in mayonnaise. 🍗

1️⃣2️⃣ Place 1 ½ ounces of sliced mozzarella on top of each chicken cutlet, using 6 ounces fresh mozzarella total. 🧀

1️⃣3️⃣ Place tomato slices on top of the mozzarella, using 1 Roma tomato per sandwich (4 Roma tomatoes total). 🍅

1️⃣4️⃣ Top the sandwich with the ciabatta halves covered in pesto, so that the pesto is on the inside of the sandwich. 🥪

1️⃣5️⃣ Lightly brush avocado oil on top of the sandwiches. Place the sandwiches in the skillet with the avocado oil facing down. Cook each sandwich for 2 minutes, then flip the sandwiches over and cook for 2 minutes more, until the mozzarella is melted and the sandwiches are warmed through. 🍳

1️⃣6️⃣ Remove the sandwiches from the skillet and serve immediately. Enjoy your delicious Chicken Pesto Sandwich! 😋