Follow these straightforward steps to create your own Cajun Chicken Fettuccine Alfredo:

1. Cook the Fettuccine: Begin by boiling a large pot of salted water. Add the fettuccine and cook until al dente according to package directions. Drain and set aside.
2. Prepare the Chicken: While the pasta cooks, season the chicken breasts with Cajun seasoning, ensuring an even coating.
3. Heat the Oil: In a large skillet, heat the olive oil over medium-high heat.
4. Cook the Chicken: Add the seasoned chicken breasts to the skillet. Cook for about 6-7 minutes per side, or until cooked through and golden brown. Remove the chicken from the skillet and let it rest for a few minutes before slicing.
5. Sauté the Garlic: In the same skillet, lower the heat to medium and add minced garlic. Sauté for about 1 minute, allowing the garlic to become fragrant.
6. Make the Alfredo Sauce: Pour in the heavy cream and stir. Allow the cream to simmer gently. Gradually whisk in the Parmesan cheese until melted and the sauce thickens.
7. Season the Sauce: Add salt and pepper to taste. If you prefer an extra kick, toss in more Cajun seasoning or red pepper flakes.
8. Combine Pasta and Sauce: Add the drained fettuccine to the Alfredo sauce, tossing to coat the pasta evenly.
9. Slice the Chicken: Cut the rested chicken breasts into strips. Place them atop the coated fettuccine.
10. Garnish and Serve: Sprinkle chopped fresh parsley over the dish for a pop of color and added flavor. Serve immediately while hot.

The steps above will guide you seamlessly through the preparation of Cajun Chicken Fettuccine Alfredo, ensuring a delightful dish every time.