Heat olive oil over medium-high in a large skillet. Add chopped onion and green pepper and sauté until tender.

Add the ground beef and heat over medium-low heat until thoroughly cooked.

While the meat is browning, add the beans, tomatoes, tomato sauce, green chilies and seasoning to a large stock pot (use at least an 8 quart stock pot).

Add the beef, onion and pepper mixture to the stock pot and cook on low heat for 30-45 minutes, stirring occasionally.

Optional: serve with shredded cheese and sour cream