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

2️⃣ Generously sprinkle 1 tablespoon Italian seasoning, salt, and freshly cracked black pepper on all sides of chicken cutlets, coating 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 seasoned chicken cutlets in the skillet. Sear chicken for 3 to 5 minutes, then flip each cutlet over. Sear 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 cutlets to a large plate and set aside. 🍽️

6️⃣ Place 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 ciabatta rolls for 1 to 2 minutes, just until rolls are lightly golden. Remove toasted rolls from the skillet and repeat with any remaining rolls. 🥖

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

To Assemble the Sandwiches:
8️⃣ Place 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 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 pesto out to cover the entire surface of the rolls. 🍃

1️⃣1️⃣ Place one 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 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 sandwiches in the skillet with the avocado oil facing down. 🖌️

1️⃣6️⃣ 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. Remove sandwiches from the skillet and serve immediately. 🍽️

Enjoy your delicious Chicken Pesto Sandwich! 😋