Heat the olive oil in a large skillet over medium heat. Season both sides of the chicken breasts with salt, pepper, garlic powder, and Italian seasoning.
Place the chicken breasts in the skillet and cook for about 6-7 minutes on each side, or until they are golden brown and fully cooked (internal temperature of 165°F/75°C). Remove chicken from the skillet and set aside.
In the same skillet, add the halved cherry tomatoes. Sauté for about 3-4 minutes until the tomatoes are softened and their juices are released.
Lower the heat to medium-low and return the chicken to the skillet. Scatter the fresh mozzarella balls over the chicken and tomatoes.
Cover the skillet with a lid and let it cook for an additional 3-4 minutes, or until the cheese is melted and bubbly.
Remove from heat and fold in the torn basil leaves for a fresh flavor boost.
Drizzle with balsamic glaze if desired and serve warm.
Notes
Drizzle with balsamic glaze for extra flavor if desired.