Add oil and add the chicken so it fits comfortably on skillet (no overcrowding) and cook for about 7 minutes on on side
While chicken starts cooking, combine the tomatoes, balsamic and basil together (add salt and pepper if desired) and set aside
Flip the chicken over and cook for 3 more minutes on medium heat then add the cheese to each piece of chicken and cover with a lid and cook on low until the internal temperature of the chicken reaches 165 degrees F
Remove chicken from skillet and top with pesto and the tomato salad
Sprinkle with parmesan cheese and enjoy!
Notes
*Store leftovers in fridge for 5 days. Add tomatoes before serving!