Step 1: Cook pasta according to package directions until al dente, then drain and set aside.
Step 2: Season chicken strips with Cajun seasoning, salt, and pepper.
Step 3: Heat olive oil in a large skillet over medium-high heat, add chicken, and cook for 5-7 minutes until browned and cooked through. Remove and set aside.
Step 4: In the same skillet, add bell peppers and onion, sauté for 4-5 minutes until softened.
Step 5: Add garlic and cook for 1 minute until fragrant.
Step 6: Pour in heavy cream and chicken broth, bring to a simmer, and cook for 3-4 minutes.
Step 7: Stir in Parmesan cheese until melted and sauce thickens slightly.
Step 8: Return chicken to the skillet, add cooked pasta, and toss to coat evenly.
Step 9: Season with additional salt and pepper if needed, garnish with parsley, and serve hot.