Place chopped (uncooked) bacon in a large pot or Dutch oven and cook over medium heat until crisp and cooked through. Remove bacon to a paper towel lined plate and drain all but 1 ½ Tablespoons of grease.
Add onion and pepper and cook until softened, about 3-5 minutes.
Add garlic and cook until fragrant (about 30 seconds).
Add beef, breaking apart with a spatula as you cook. Once meat is partially (about 50%) browned, add sugar and all spices and stir well.
Add all remaining ingredients — beef broth, beans, tomatoes, tomato paste, chilis, and Worcestershire sauce and cooked bacon and stir well.
Bring to a boil and cook 1-2 minutes, stirring frequently.
Reduce heat and simmer, uncovered, stirring occasionally. Simmer for 30 minutes to allow flavor to really develop.
Serve with preferred toppings (sour cream, shredded cheddar cheese, green onion, corn chips.