Quick Chicken Stew

Name: Quick Chicken Stew
Prep time: 20 min
Cook time: 1 h
Total time: 1 h 20 min
Ingredients: 1 tbsp (15 mL) olive oil; 1 1/2 cup (375 mL) onions, diced; 1 cup (250 mL) celery, sliced (include some leaves); 6 potatoes, medium, peel on; 3 cups (750 mL) carrots, peeled and sliced; 2.2 lb (1 kg) boneless, skinless chicken breasts; 4 cups (1 L) low-sodium chicken broth; 1 tsp (5 mL) thyme, dried; 1/2 tsp (2.5 mL) oregano, dried; 1/2 tsp (2.5 mL) black pepper; 2 bay leaves; 5 tbsp (75 mL) cornstarch; 1/4 cup (60 mL) cold water; 1/4 tsp (1.25 mL) salt; 1/2 cup (125 mL) parsley, fresh, chopped, for garnish