Cajun Dirty Spaghetti

Cajun Dirty Spaghetti is the kind of cozy, flavorful dinner that feels like comfort food with a fun Southern twist. Tender spaghetti is tossed with savory sausage, colorful vegetables, tomatoes, and a rich Cajun-inspired sauce that clings beautifully to every bite. A simple packet of onion soup mix adds an unexpected layer of deep, savory flavor that makes this dish taste like it simmered all day.

Although inspired by Louisiana flavors and classic dirty rice, this fusion-style pasta brings something a little different to the table. It’s hearty, satisfying, and perfect for busy weeknights when everyone wants something warm and comforting. Plus, leftovers taste even better the next day, making this recipe one you’ll happily come back to again.

Recipe Yield: 6 servings

INGREDIENTS

12 oz spaghetti
1 lb mild Italian sausage, casings removed
1 cup diced yellow onion
1/2 cup diced celery
1/2 cup diced green bell pepper
1/2 cup diced red bell pepper
3 garlic cloves, minced
2 tbsp unsalted butter
2 tbsp all-purpose flour
1 packet onion soup mix (1 oz)
1 tbsp Cajun seasoning
1/2 tsp smoked paprika
1 can (14.5 oz) petite diced tomatoes, undrained
1 cup low-sodium chicken broth
1/2 cup heavy cream
1/4 tsp black pepper
2 green onions, sliced

Chopped fresh parsley, for garnish (optional)

INSTRUCTIONS

1. Cook the pasta:
Cook the spaghetti according to the package directions until al dente. Reserve 1/2 cup pasta water, then drain and set aside.

2. Brown the sausage:
Meanwhile, heat a large deep skillet over medium heat. Add the sausage and cook for 6 to 8 minutes, breaking it into bite-sized crumbles, until browned. Drain excess grease if needed.

3. Soften the vegetables:
Add the onion, celery, bell peppers, and garlic. Cook for 4 to 5 minutes, stirring occasionally, until softened.

4. Make the Cajun roux:
Push the sausage mixture to one side of the skillet. Add the butter to the empty side and melt it. Sprinkle in the flour and whisk continuously for 1 minute until smooth and lightly golden.

5. Build the sauce:
Stir in the onion soup mix, Cajun seasoning, smoked paprika, diced tomatoes, chicken broth, and black pepper. Mix everything together and bring to a gentle simmer. Cook for 5 minutes to allow the flavors to blend.

6. Add the cream:
Reduce the heat to low and stir in the heavy cream. Simmer gently for 2 to 3 minutes until the sauce is smooth and slightly thickened. Avoid boiling.

7. Toss with the pasta:
Add the cooked spaghetti and toss until evenly coated. If needed, add a splash of the reserved pasta water until the sauce reaches your preferred consistency.

8. Finish and serve:
Sprinkle with green onions and parsley, if desired. Serve warm.

Helpful Tips to Perfect This Recipe

• Reserve some pasta water. A few tablespoons of starchy pasta water help create a silky sauce and make it easier for the Cajun sauce to coat the spaghetti beautifully.
• Use Italian sausage for extra flavor. Mild or hot Italian sausage adds richness and pairs wonderfully with the Cajun spices. Ground beef works too, but sausage gives the dish more depth.
• Don’t overcook the sauce. Once the cream is added, keep the sauce at a gentle simmer. This keeps it smooth and creamy while preventing it from becoming too thick.