As weird as most people find this soup sounding, there is a resounding response. Everyone LOVES it. Also, it may be hard to find hominy, which is a form of corn maize, here in Australia. My solution is to replace it with a white bean.
Saute onion, carrot, chicken in oil in a 3 litre, heavy duty saucepan over medium high heat. Cook until chicken is no longer pink.
Add celery and capsicum; sauté 3 to 4 minutes or until vegetables are tender-crisp. Stir in pumpkin, chicken stock, sour cream, hominy (or white beans), coriander, salt, pepper, oregano, cumin, and nutmeg, then simmer over low heat for 10 to 15 minutes.