01 - Cook the pasta in a large pot of salted boiling water according to package instructions until al dente. Drain and set aside.
02 - While the pasta cooks, heat 1 tablespoon olive oil in a large skillet over medium-high heat. Add chicken pieces and sausage; season with half the Cajun seasoning, salt, and pepper. Sauté for 4–5 minutes until browned and cooked through. Remove and set aside.
03 - Add remaining olive oil to the skillet. Add shrimp, season lightly with salt, pepper, and a pinch of Cajun seasoning. Cook for 1–2 minutes per side until just pink and cooked through. Remove and set aside.
04 - In the same skillet, add onions and bell peppers. Sauté for 3–4 minutes until softened. Add garlic and cook for 1 minute until fragrant.
05 - Stir in diced tomatoes, tomato paste, smoked paprika, cayenne pepper, oregano, and remaining Cajun seasoning. Simmer for 5 minutes, stirring occasionally.
06 - Pour in heavy cream, mix well, and bring to a gentle simmer. Return chicken, sausage, and shrimp to the pan. Simmer together for 2–3 minutes.
07 - Add cooked pasta to the sauce, tossing to coat evenly. Taste and adjust seasoning as needed.
08 - Serve immediately, garnished with parsley and lemon wedges if desired.