01 - Heat olive oil in a large pot or Dutch oven over medium-high heat. Add the onion, red and green bell peppers, and sauté for 5 minutes until softened.
02 - Add the garlic and jalapeño; cook for 1 minute until fragrant.
03 - Add the ground beef, breaking it up with a spoon. Cook until browned and no longer pink, about 7–8 minutes. Drain excess fat if necessary.
04 - Stir in chili powder, cumin, paprika, cayenne, oregano, salt, and black pepper. Cook for 1 minute to toast the spices.
05 - Add tomato paste; stir well. Pour in crushed tomatoes and beef broth. Mix thoroughly.
06 - Stir in the kidney beans. Bring to a gentle boil, then reduce heat to low. Cover and simmer for 45–60 minutes, stirring occasionally, until flavors meld and chili thickens.
07 - Taste and adjust seasoning as needed. Serve hot, garnished with cilantro, green onions, cheddar cheese, and/or sour cream if desired.