Preheat oven to 375° F. Grease a 9x13-inch baking dish with butter. Set aside.
In a large bowl, combine diced tomatoes, stuffing mix, water and garlic. Stir together until stuffing is moistened. Don't over mix.
Lay the chicken pieces in a single layer in the prepared baking pan. Spread the basil pesto over the top of chicken pieces. Sprinkle the cheese evenly over the chicken. Top evenly with the stuffing mixture.
Cover and bake for 30 minutes or until chicken is cooked through. Serve and enjoy!