Creating Creamy Cajun Chicken Spaghetti with Garlic Mozzarella Sauce is straightforward when you follow these simple steps:

1. Cook the Spaghetti: In a large pot, boil water and cook the spaghetti according to package instructions. Drain and set aside.
2. Prepare the Chicken: While the pasta cooks, season the chicken breasts with Cajun seasoning, salt, and pepper.
3. Cook the Chicken: In a large skillet, heat olive oil over medium heat. Add the seasoned chicken and cook for about 6-7 minutes on each side until cooked through. Remove from the skillet and let rest before slicing.
4. Make the Sauce: In the same skillet, add minced garlic and sauté for about 1 minute until fragrant. Pour in the heavy cream, stirring to combine.
5. Add Cheese: Gradually mix in the mozzarella and Parmesan cheese, stirring until melted and smooth. Season with additional salt and pepper if needed.
6. Combine: Add the cooked spaghetti to the sauce, tossing to coat evenly. Slice the chicken and place it on top of the pasta.
7. Garnish: Sprinkle with fresh parsley for a pop of color and additional flavor.

These steps will guide you in creating this incredible dish effortlessly.