saute in oil, onions and bell peppers in large stock pot. add beef, 2 quarts water, cover and simmer for 2 hours. add cabbage, yams, carrots, potatoes, squash, chile, salt and pepper. simmer for 45 minutes. add more water as needed. add corn and cook 20 minutes. remove chiles and discard. remove meat and vegetables. reserve broth. place beef on individual plates and surround with vegetables. serve with lemon quarter and olive oil on the side. following main course, reheat broth and serve as soup.