In a saute pan over medium heat, fry bacon until about half way done. Lower hear slightly, add onion and garlic and stirring frequently, cook about 5 minutes. Add beans, chicken broth and salt and simmer covered for about 10 minutes. Taste and add salt if needed, add the pepper, oregano and tomatoes. Heat through and serve or simmer awhile longer if preferred. Will keep in the refrigerator for up to 4 days and reheats very well.