Brown ground beef, chuck, or turkey in a heavy pot
Season the meat with salt and pepper while cooking
Sauté diced onion, garlic, and bell pepper in the same pot
Add chili powder, cumin, smoked paprika, oregano, and cayenne
Stir in tomato paste and cook for 1 to 2 minutes
Add diced tomatoes, tomato sauce, and broth
Add beans if desired
Return the browned meat to the pot
Simmer on low heat for at least 30 to 60 minutes
Stir occasionally to prevent sticking
Adjust salt, heat, and spice to taste
Add a little sugar, cocoa, or coffee for depth if desired
Finish with lime juice or vinegar for brightness
Serve with shredded cheese, sour cream, onions, or cilantro