Creating this Creamy Cajun Chicken Pasta will be straightforward if you follow these clear steps:

1. Cook Pasta: Boil fettuccine in salted water according to package instructions. Drain and set aside.
2. Season Chicken: In a bowl, coat the chicken breasts with Cajun seasoning, ensuring they are well covered.
3. Heat Oil: In a large skillet, heat olive oil over medium-high heat.
4. Cook Chicken: Add the seasoned chicken breasts to the skillet, cooking for about 6-7 minutes on each side or until fully cooked.
5. Remove and Slice: Once cooked, remove chicken from the skillet and let it rest for a few minutes before slicing it into strips.
6. Sauté Garlic: In the same skillet, add minced garlic and sauté for 30 seconds, or until fragrant.
7. Add Cream and Broth: Pour in heavy cream and chicken broth, stirring to combine and bring to a simmer.
8. Add Veggies: Stir in cherry tomatoes and spinach, allowing them to wilt in the sauce.
9. Combine Pasta: Add the drained fettuccine to the skillet, tossing it gently to coat in the sauce.
10. Add Cheese: Stir in grated Parmesan cheese and adjust seasoning with salt and pepper to taste.
11. Serve: Plate the pasta, adding sliced chicken on top, and garnish with fresh parsley if desired.

These steps will guide you in preparing this incredible dish effortlessly!