Soak beans in water overnight in refrigerator according to package directions. Reserve seasoning packet.
Coat beef with seasoning from reserved packet. Heat 1 tablespoon oil in large stockpot over medium heat until hot. Brown 1/3 of beef; remove from stockpot. Repeat twice with remaining oil and beef, adding additional oil as needed.
Pour off drippings; return beef to stockpot. Drain beans; discard water. Add beans, tomatoes and beef broth to stockpot. Bring to a boil. Reduce heat; cover tightly and simmer 1-3/4 to 2-1/4 hours, or until beef is fork tender.
Stir in potatoes, if desired; bring to a boil. Reduce heat; continue simmering, uncovered, 5 to 7 minutes or until potatoes are tender, stirring occasionally. Season with salt and pepper, as desired.
Nutrition information per serving: 406 Calories; 98.1 kcal Calories from fat; 10.9 g Total Fat; 3.5 g Saturated Fat; 0.3 g Trans Fat; 2.5 g Polyunsaturated Fat; 4.5 g Monounsaturated Fat; 105 mg Cholesterol; 1487 mg Sodium; 31 g Total Carbohydrate; 1.6 g Dietary Fiber; 5.7 g Total Sugars; 45 g Protein; 0 g Added Sugars; 85.9 mg Calcium; 5.8 mg Iron; 532 mg Potassium; 5.3 IU Vitamin D; 0.3 mg Riboflavin; 4.8 mg Niacin; 0.6 mg Vitamin B6; 2.9 mcg Vitamin B12; 249 mg Phosphorus; 8.9 mg Zinc; 64.7 mcg Selenium; 110.6 mg Choline;