01 - Heat a large pot or Dutch oven over medium heat. Add the ground turkey and cook, breaking it up with a spoon, until thoroughly browned, about 5 to 6 minutes. Drain excess fat if necessary.
02 - Add the finely chopped onion and diced red bell pepper to the pot. Sauté for 4 to 5 minutes until softened.
03 - Stir in the minced garlic and cook for 1 minute until fragrant.
04 - Add chili powder, ground cumin, smoked paprika, dried oregano, salt, black pepper, and cayenne pepper if using. Stir well to coat the meat and vegetables evenly with the spices.
05 - Add diced tomatoes, tomato paste, kidney beans, and chicken broth. Stir thoroughly to blend all ingredients.
06 - Bring the mixture to a boil, then reduce the heat to low. Cover and simmer for 30 minutes, stirring occasionally to prevent sticking.
07 - Taste and adjust seasoning as needed before serving.
08 - Ladle the chili into bowls and garnish with shredded sharp cheddar cheese and optional chopped fresh cilantro.