In a bowl, add the diced tomatoes, chopped basil leaves, minced garlic, balsamic vinegar, oil, salt, and pepper and mix until well combined, set aside.
Beat the chicken until it's even in thickness. In a large bowl add the 2 Tbsp oil, salt, Italian seasoning, black pepper and minced garlic. Add chicken and stir to coat then cover and marinate for 30 minutes.
In a large skillet, over medium heat, heat 1 Tbsp olive oil. Once hot, add the chicken to the skillet and saute for 3-5 minutes per side, or until the internal temperature of the chicken reaches 165ºF on a food thermometer.
Once the chicken is cooked, reduce the heat to low and top each chicken with a slice of cheese. Cover the skillet with a lid and cook until cheese melts.
Remove the chicken from heat. Top each chicken breast with the Bruschetta and drizzle with balsamic glaze before serving.
