Marina the chicken with the 2 T olive oil, 2 T balsamic vinegar, 1 T minced garlic, the 1 t Italian seasoning.
In a 9x13 pan, pour chicken and the marinade into the dish. In a 375 preheated oven. Bake for 20-25 minutes. You want your chicken to cooked through but not overcooked.
When cooked, remove from the oven.
While the chicken is cooking, mix all of the remaining ingredients, except the cheese in a bowl.
Sprinkle the chicken with the mozzarella and the contents of the bowl.
Place in the oven for a few more minutes, if desired. Slice and serve with a yummy side. We had salad.