Creating your Creamy Cajun Sausage Pasta will be straightforward if you follow these simple steps:

1. Cook the Pasta: In a large pot, bring water to a boil, add salt, and cook the penne pasta according to package instructions until al dente. Drain and set aside.

2. Sauté the Sausage: In the same pot, heat olive oil over medium heat. Add the sliced Cajun sausage and cook until browned on all sides, about 5-7 minutes.

3. Add Vegetables: Stir in the chopped onion and red bell pepper. Sauté for another 3-4 minutes until they soften.

4. Incorporate Garlic and Spices: Add minced garlic, Cajun seasoning, smoked paprika, and black pepper. Sauté for an additional minute until fragrant.

5. Combine Broth and Cream: Pour in the chicken broth, bringing the mixture to a simmer. Add the heavy cream and stir until combined.

6. Add Cooked Pasta: Return the drained penne pasta to the pot, stirring to coat it with the creamy sauce.

7. Mix in Spinach: Gently fold in the fresh spinach, allowing it to wilt for about 2 minutes.

8. Add Cheese: Stir in the grated Parmesan cheese, allowing it to melt fully into the sauce. Adjust seasoning to taste.

9. Serve Immediately: Remove from heat and garnish with fresh parsley, if desired.