Preheat oven to 350 degrees.
In a large zipper-topped plastic bag, combine first 5 ingredients (Herbes de Provence through garlic). Add chicken and shake well to coat; place in a lightly-oiled baking dish.
In a small bowl, combine tomato sauce, vinegar, honey and red onion; carefully pour mixture over chicken; bake, uncovered, for 30 to 45 minutes or until juices run clear.
Sprinkle Mozzarella over the top and allow chicken to sit until cheese has melted. Serve and enjoy!