In large pot, heat olive oil over medium heat. Saute onion, carrot and celery for 5 minutes to soften.
Pour in chicken stock, tarragon, salt, pepper and bay leaves. Bring to boil, pour in quinoa, brown rice or spaghetti and reduce heat to simmer and cook 20 minutes or until tender.
Stir in lemon juice, zest, chicken and chives. Serve hot.
Notes
*If you don't have already cooked chicken, stick 2 uncooked chicken breasts into the hot broth while the quinoa is cooking. After 20 minutes, remove, shred and return to the pot.