Slice chicken breasts in half lengthwise to make thin chicken breasts.

Season chicken breasts by sprinkling on the next 4 ingredients.

In small bowl, combine tomatoes (drained) and balsamic vinaigrette.

Place chicken in greased baking dish and cover with tomato mixture.

Bake 400° for 30 minutes.

If using parmesan cheese, sprinkle on top for last 5 minutes of baking.

Serve with pasta or by itself!