Recipe

Dirty Spaghetti

Smoky sausage, Cajun spice, and a rich tomato gravy that hugs the noodles.

By Matt Campbell

•

4.8

A deep bowl of dirty spaghetti with glossy tomato sauce, sliced smoky sausage, and chopped parsley on top, set on a warm-toned kitchen table with a fork beside it

Dirty spaghetti is what happens when spaghetti night decides to put on boots and start a band. It is saucy, a little spicy, and full of that smoky, savory flavor you usually only get after something has been browning in a pan for a while.

The vibe is inspired by Louisiana dirty rice, meaning we build a deeply seasoned base with sausage, the holy trinity (onion, bell pepper, celery), and a bunch of spices. Then we turn it into a tomato gravy that clings to every noodle. It is weeknight-friendly, but it tastes like you tried way harder than you did.

Cajun cooking ingredients on a kitchen counter including garlic, onion, celery, green bell pepper, smoked sausage, canned tomatoes, and dried spices in small bowls

Why It Works

Big flavor from simple moves. Browning the sausage hard gives you crisp edges and the fond that makes the sauce taste slow-cooked.
A sauce that actually sticks. Tomato paste plus a splash of pasta water turns into a glossy gravy that hugs the spaghetti instead of sliding off.
Flexible heat level. You can keep it mild, or you can make it bite back with cayenne and hot sauce.
Skillet-finished comfort. The pasta finishes in the sauce, so everything tastes like one cohesive, seasoned thing.

Pairs Well With

Storage Tips

Refrigerate: Store in an airtight container for up to 4 days.

Reheat: Warm in a skillet over medium-low with a splash of water or broth. Stir often until the sauce loosens and turns glossy again. Microwave works too, but the skillet brings the best texture back.

Freeze: Freeze up to 2 months. Thaw overnight in the fridge, then reheat with a little extra liquid. The pasta will be softer after freezing, but the flavor holds up.

A clear glass meal prep container filled with leftover dirty spaghetti and sausage, lid resting nearby on a clean kitchen counter

Common Questions

Why is it called dirty spaghetti?

It is a nod to dirty rice, which gets its "dirty" color from deeply browned meat drippings and bold seasoning (often including chicken livers or gizzards in traditional versions). Dirty spaghetti keeps that same idea, but swaps rice for noodles and turns the whole thing into a saucy pasta.

Is dirty spaghetti the same as spaghetti with meat sauce?

Not quite. This is more Cajun-leaning: browned smoked sausage, the onion-pepper-celery base, and a spice blend that tastes smoky and warm. It is less Italian meat sauce, more spicy tomato gravy.

How spicy is this recipe?

As written, it is medium. If you want mild, use a mild smoked sausage and skip the cayenne. If you want heat, add more cayenne or finish with hot sauce.

What sausage is best?

Andouille is the classic pick for smoke and spice. Any smoked sausage works, and ground pork or turkey can work in a pinch, but smoked sausage gives the best "dirty" flavor.

Can I make it creamier?

Yes. Stir in 2 to 4 tablespoons of cream cheese or a splash of heavy cream at the end. It turns the sauce into a spicy, creamy tomato situation that is dangerously easy to eat.

Can I add shrimp or chicken?

Absolutely. Brown sliced chicken breast or thigh after the sausage, or quickly sauté shrimp at the end and fold it in right before serving so it stays juicy.

Can I make it gluten-free, lower-sodium, or vegetarian?

Gluten-free: Use your favorite gluten-free spaghetti and reserve extra pasta water since it can drink up sauce fast.

Lower-sodium: Choose low-sodium broth, and start with less Cajun seasoning. Taste at the end and add salt only if needed.

Vegetarian: Swap in plant-based smoked sausage and use vegetable broth. Keep the browning step, it still matters for flavor.

Matt Campbell

I have always had a huge passion for the culinary arts, people, working as a team, and so on. I wanted to pursue my love for cooking initially at Virginia Commonwealth University with a culinary arts degree; however, I instead decided to apply myself and acquire more practical skills. My end goal is to eventually open my own restaurant or similar establishment.

Kitchen Essentials

Large deep skillet or Dutch oven (12-inch is ideal)
Large pot for boiling pasta
Wooden spoon or sturdy spatula
Knife and cutting board
Measuring spoons
Microplane or garlic press (optional)

I love recipes that feel like you are getting away with something. Dirty spaghetti is one of those. It starts like a normal pasta night, then you brown sausage until it gets those crispy edges, toss in the holy trinity, and suddenly your kitchen smells like you know what you are doing. The first time I made it, I kept "fixing" it by tasting and adding little pinches of spice until it hit that perfect point where you pause mid-bite and just nod at the bowl.

Dirty Spaghetti

(4.8 Reviews)

Prep Time 15 minutes

Cook Time 20 minutes

Total Time 35 minutes

Servings 6

Ingredients

12 oz spaghetti
1 lb smoked sausage or andouille, sliced into half-moons
1 tbsp olive oil (only if sausage is very lean)
1 medium yellow onion, finely diced
1 green bell pepper, finely diced
2 celery ribs, finely diced
4 cloves garlic, minced
2 tbsp tomato paste
1 can (14.5 oz) diced tomatoes, with juices
1 can (8 oz) tomato sauce
1 cup chicken broth (plus more as needed)
1 1/2 tsp Cajun seasoning (see note)
1 tsp smoked paprika
1/2 tsp dried oregano
1/4 tsp cayenne pepper (optional, more to taste)
1/2 tsp kosher salt (optional, see note)
1/2 tsp black pepper
1 tsp Worcestershire sauce
1 to 2 tsp hot sauce (optional)
2 tbsp chopped parsley or sliced green onions, for serving
Grated Parmesan (optional, not traditional but very welcome)

Note on Cajun seasoning: Salt levels vary wildly by brand. If yours is salty, start with 1 teaspoon and hold the added kosher salt until the end.

Half-moon slices of andouille sausage on a wooden cutting board with a chef's knife and diced onion, bell pepper, and celery nearby

Instructions

Get the pasta going. Bring a large pot of well-salted water to a boil. Cook spaghetti until just shy of al dente, about 1 minute less than the package says. Reserve 1 cup pasta water, then drain.
Brown the sausage. While the pasta cooks, heat a large deep skillet over medium-high. Add the sliced sausage (and olive oil only if needed). Cook 6 to 8 minutes, stirring occasionally, until deeply browned with crisp edges. Do not rush this. Browning is the whole party.
Sweat the veggies. Reduce heat to medium. Add onion, bell pepper, and celery to the sausage. Cook 5 to 6 minutes, stirring and scraping up the browned bits, until softened. Add garlic and cook 30 seconds more.
Toast the tomato paste and spices. Stir in tomato paste, Cajun seasoning, smoked paprika, oregano, black pepper, and cayenne. Cook 1 minute, stirring, until the paste darkens slightly and smells toasted. If your Cajun seasoning is salt-free, you can add the kosher salt here. Otherwise, wait and season at the end.
Build the sauce. Add diced tomatoes, tomato sauce, chicken broth, Worcestershire, and hot sauce (if using). Bring to a gentle simmer and cook 5 minutes. You are looking for a thicker, clingy tomato gravy. Taste and adjust seasoning.
Toss and finish. Add drained spaghetti to the skillet. Toss well. Add reserved pasta water a splash at a time until the sauce turns glossy and coats the noodles. Depending on your sausage and pasta, you may use anywhere from 1/4 cup to the full cup. Cook 1 to 2 minutes, stirring, until the pasta is perfectly tender and the sauce clings.
Serve. Top with parsley or green onions. Parmesan is optional but honestly, it works. Serve hot with a simple salad, garlic bread, or roasted broccoli if you want something crisp on the side.