Simmer beans covered in water until tender. Add tomatoes and simmer 5 minutes. Sauté green pepper in salad oil 5 minutes. Add onion; cook until tender, stirring often.
Add garlic, parsley. Melt butter and sauté meat for 15 minutes. Add meat to onion mixture, stir in chili powder and cook 15 minutes. Add this to beans and add spices. Simmer covered for 1 hour. Cook uncovered 30 minutes. Skim fat from top.