Begin by bringing a large pot of salted water to a boil over high heat. Once boiling, add 8 oz of penne pasta and cook for about 10-12 minutes until al dente. Drain the pasta and set aside.

In a skillet, heat 1 tbsp of olive oil over medium heat. Add in the 1 lb of sliced chicken breast seasoned with 2 tbsp of Cajun seasoning. Cook for approximately 5-7 minutes until browned and cooked through.

Introduce 1 clove of minced garlic to the skillet with the chicken. Sauté for about 1 minute until fragrant, ensuring not to burn it.

Pour 2 cups of heavy cream into the skillet, stirring gently. Bring to a gentle simmer and allow to bubble lightly for about 2-3 minutes to thicken.

Gradually stir in 1 cup of grated Parmesan cheese until melted and smooth. Adjust with salt and pepper as desired.

Gently toss the cooked penne pasta into the skillet, ensuring it is well coated in the creamy sauce. Stir for another minute to heat through.

Serve hot, garnished with chopped parsley. Appreciate the presentation before enjoying.