01 - Heat a large pot or Dutch oven over medium heat. Add ground beef and cook, breaking up with a spoon, until browned and no longer pink, approximately 5-7 minutes. Drain excess fat if necessary.
02 - Add chopped onion, bell pepper, and jalapeño to the pot. Sauté for 5 minutes until vegetables begin to soften and become fragrant.
03 - Stir in minced garlic and cook for 1 minute until aromatic, being careful not to burn.
04 - Add chili powder, cumin, smoked paprika, oregano, black pepper, salt, and cayenne. Stir thoroughly to coat meat and vegetables evenly with spices, allowing them to bloom for 30 seconds.
05 - Mix in tomato paste, diced tomatoes with juice, kidney beans, and beef broth. Stir until fully combined and tomato paste is dissolved.
06 - Bring mixture to a simmer, then reduce heat to low. Cover and cook for 45 minutes, stirring occasionally to prevent sticking and ensure even flavor development.
07 - Taste and adjust seasoning with additional salt or pepper if needed. Serve hot, optionally garnished with chopped cilantro, sour cream, shredded cheddar cheese, and sliced green onions.