Saute onion, garlic, and peppers in oil until soft and onions are translucent. Add chicken stock and simmer 5 minutes. Add: chicken, oregano, cilantro, tomatoes, beans, and corn. Simmer 5 minutes. Then add lime juice. Serve (over rice if you choose), topped with shredded Monterey Jack cheese avocado, and sour cream. Serve with tortilla chips.