In a large pot or dutch oven, heat oil over medium-high heat and sauté onion, celery and carrots, stirring occasionally, about 5 minutes. Add mushrooms and garlic, cooking another 3 minutes.
Stir in the chicken stock, bay leaves, turmeric, crushed red pepper, salt and chickpeas; bringing to a boil. Mix in shredded chicken, cover and turn down heat to a simmer for 15 to 20 minutes.