1.Add oil to large saucepan and heat. Add onion and cook until soft.
2.Add ground beef, increase heat and cook for 5 minutes, stirring from time to time, until the meat is no longer pink.
3.Stir in beans, tomatoes, stock, Mrs. Dash® Extra Spicy Seasoning Blend and chocolate. Bring to a boil, cover and simmer gently for 1 hour.
4.Ladle into mugs or large cups and garnish as desired.