Free Range Organic Chicken with Cherries and Kale

1 ½ pounds skinless, boneless free range organic  chicken breast 2 tablespoons grapeseed oil 2 tablespoons shallots, finely chopped 1 (10 ounce) bag frozen cherries 2 tablespoons balsamic vinegar 1 tablespoon dijon mustard 1 bunch kale, chiffonade 2 tablespoons olive...