BBQ Grainy Mustard Chicken Salad (15-Minute No-Cook)

Name: BBQ Grainy Mustard Chicken Salad (15-Minute No-Cook)
Prep time: 15 min
Total time: 15 min
Cuisine: American
Ingredients: 4 medium grilled BBQ chicken breasts (approximately 1½ lb / 680g total, cooled completely and sliced into bite-sized pieces); 2 stalks celery (chopped, approximately 100g); 1 large roasted red pepper (or 2 small, drained if jarred, patted dry, and sliced into thin strips); 1 ear corn (kernels cut from the cob, approximately ¾ cup / 120g kernels); 1/3 cup red onion (finely chopped, 50g); 2-3 medium radishes (finely chopped, approximately 50g); 1 tablespoon fresh parsley (finely chopped, 3g); 1/4 cup grainy mustard dressing (60ml, see notes for homemade version); 2 tablespoons grainy mustard; 2 tablespoons extra virgin olive oil; 1 tablespoon apple cider vinegar; 1 teaspoon honey; 1 pinch salt (to taste); 1 pinch ground black pepper (to taste)