Preheat oven to 375 degrees F.
Mix thyme, sage, poultry seasoning, and garlic with canola oil. Rub seasoning mixture all over the turkey breast. Place onion, carrots, and celery on bottom of a roasting pan and top with turkey breast. Pour chicken broth over turkey and vegetables. Roast for 3 hours, or until the internal temperature of the breast reaches 160 degrees F. Discard vegetables. Let turkey stand for 5 minutes and then remove skin before eating.