In a large stock pot, add olive oil, onions, celery, bell peppers and saute over medium- high heat until vegetables sweat and soften, about 3 minutes.
Add green chilies OR harissa paste, tomatoes, tomato sauce, beef stock, garlic powder, chili powder, salt, black pepper, sugar, great northern beans, pinto beans, dark red kidney beans and ground beef.
Stir and bring mixture to a boil. Simmer for 15 minutes, stirring occasionally and adding more beef stock if the mixture over reduces.