01 - Heat olive oil in a large pot over medium heat. Add diced onion and red bell pepper; sauté for 3 to 4 minutes until softened.
02 - Stir in minced garlic and cook for 1 minute until fragrant.
03 - Add lean ground turkey, breaking it up with a spoon, and cook until browned and cooked through, about 5 minutes.
04 - Mix in chili powder, cumin, smoked paprika, oregano, cayenne pepper if using, salt, and black pepper, coating the turkey and vegetables evenly.
05 - Stir in tomato paste and cook for 1 minute, stirring constantly.
06 - Pour in diced tomatoes, kidney beans, chicken broth, and uncooked macaroni. Stir well and bring to a gentle boil.
07 - Reduce heat to medium-low, cover, and simmer for 12 to 15 minutes, stirring occasionally, until pasta is tender and most liquid is absorbed.
08 - Stir in milk and shredded cheddar cheese until melted and creamy.
09 - Taste and adjust seasoning if needed. Remove from heat and serve hot, garnished with chopped cilantro or sliced green onions if desired.