30-Minute Dirty Spaghetti (Cajun One-Pot Pasta)

Dirty rice is one of Louisiana’s greatest weeknight tricks: seasoned ground meat, the holy trinity, and bold Cajun spice stretched into a full meal. This dirty spaghetti borrows the whole playbook and points it at pasta night. Ground turkey browns with onion, bell pepper, and celery, gets dusted with homemade Cajun seasoning, then simmers with tomatoes and broth — and the spaghetti cooks right in the pot, drinking up all that smoky sauce. One pot, 30 minutes, and a bowl that tastes like it took all evening.

Dutch oven filled with Cajun dirty spaghetti topped with sliced green onions.

Why you’ll love it

  • One pot, no colander. The spaghetti cooks directly in the Cajun tomato-turkey sauce, so the pasta absorbs flavor instead of plain water.
  • Big Cajun flavor, pantry ingredients. A homemade seasoning blend does the heavy lifting — no specialty shopping.
  • ~28g protein per serving (estimated), from lean ground turkey plus the pasta itself.
  • Feeds a crowd. Six generous servings from a single pot, and the leftovers are excellent.
Arranged ingredients: ground turkey, diced onion, bell pepper, celery, dry spaghetti, canned diced tomatoes, Cajun spices, and chicken broth.

Ingredients

  • 1.5 lb ground turkey, 93% lean
  • 1 tbsp olive oil
  • 1 medium yellow onion, diced
  • 1 green bell pepper, diced
  • 2 stalks celery, diced
  • 3 cloves garlic, minced
  • 3 tbsp homemade Cajun seasoning, see note; or store-bought
  • 1 (14.5 oz) can diced tomatoes, undrained
  • 3 cups low-sodium chicken broth
  • 12 oz spaghetti, broken in half
  • 0.5 cup sliced green onions, plus more for serving
  • Hot sauce, for serving
Ground turkey browning in crumbles in a dark Dutch oven with a wooden spoon.
Diced onion, green bell pepper, and celery softening with browned turkey, dusted with reddish Cajun seasoning.

Equipment

A large Dutch oven or deep heavy pot with a lid (5-quart or larger), a wooden spoon or spatula, and tongs.

Instructions

  1. Brown the turkey. Heat the olive oil in a large Dutch oven over medium-high heat. Add the ground turkey and cook, breaking it into crumbles, until no pink remains, about 5–6 minutes. Drain off any excess liquid.
  2. Soften the trinity and bloom the seasoning. Stir in the onion, bell pepper, and celery; cook until softened, about 3 minutes. Add the garlic and Cajun seasoning; cook 1 minute more, until fragrant and the vegetables are well coated.
  3. Add tomatoes and broth. Pour in the diced tomatoes with their juices and the chicken broth, scraping up any browned bits from the bottom. Bring to a lively boil.
  4. Add the spaghetti; simmer covered. Stir in the broken spaghetti, pressing it down so it’s mostly submerged. Reduce the heat to medium-low, cover, and simmer 10 minutes, stirring twice to keep the pasta from sticking, until the spaghetti is tender and most of the liquid is absorbed into a thick sauce.
  5. Rest and toss. Remove from the heat and let stand, covered, 2 minutes — the sauce will thicken as it rests. Uncover and toss with tongs; if it looks dry, splash in 2–3 tablespoons of broth.
  6. Top and serve. Shower with the sliced green onions and serve hot, with hot sauce on the table.
Diced tomatoes and chicken broth poured into a pot of browned turkey and vegetables.
Broken dry spaghetti being lowered with tongs into simmering reddish broth.
Pot with lid slightly ajar, spaghetti simmering in Cajun turkey sauce with steam rising.

Doneness cues: Ground turkey must reach 165°F internally (it will, well before the end — the simmer guarantees it). The spaghetti is done when tender with a thick, clinging sauce; it keeps absorbing liquid as it stands, so serve promptly.

Tongs lifting glossy spaghetti coated in reddish-brown Cajun sauce with turkey crumbles and peppers.
Two bowls of dirty spaghetti topped with green onions, with a hot sauce bottle and fork beside them.

30-Minute Dirty Spaghetti (Cajun One-Pot Pasta)

Seasoned ground turkey, the holy trinity, and tomatoes simmer into a smoky Cajun sauce that the spaghetti cooks in directly — one pot, 30 minutes, about 28g protein per serving (estimated).
Prep Time 8 minutes
Cook Time 22 minutes
Total Time 30 minutes
Servings: 6 servings

Ingredients
  

  • 1.5 lb ground turkey 93% lean
  • 1 tbsp olive oil
  • 1 medium yellow onion diced
  • 1 green bell pepper diced
  • 2 stalks celery diced
  • 3 cloves garlic minced
  • 3 tbsp homemade Cajun seasoning see note; or store-bought
  • 1 (14.5 oz) can diced tomatoes undrained
  • 3 cups low-sodium chicken broth
  • 12 oz spaghetti broken in half
  • 0.5 cup sliced green onions plus more for serving
  • Hot sauce for serving

Equipment

  • Large Dutch oven or deep heavy pot with lid (5-quart or larger)
  • Wooden spoon or spatula
  • Tongs

Method
 

  1. Heat the olive oil in a large Dutch oven over medium-high heat. Add the ground turkey and cook, breaking it into crumbles, until no pink remains, about 5–6 minutes. Drain off any excess liquid.
  2. Stir in the onion, bell pepper, and celery; cook until softened, about 3 minutes. Add the garlic and Cajun seasoning; cook 1 minute more, until fragrant and the vegetables are well coated.
  3. Pour in the diced tomatoes with their juices and the chicken broth, scraping up any browned bits from the bottom. Bring to a lively boil.
  4. Stir in the broken spaghetti, pressing it down so it’s mostly submerged. Reduce the heat to medium-low, cover, and simmer 10 minutes, stirring twice to keep the pasta from sticking, until the spaghetti is tender and most of the liquid is absorbed into a thick sauce.
  5. Remove from the heat and let stand, covered, 2 minutes — the sauce will thicken as it rests. Uncover and toss with tongs; if it looks dry, splash in 2–3 tablespoons of broth.
  6. Shower with the sliced green onions and serve hot, with hot sauce on the table.

Notes

Food safety: ground turkey must reach 165°F internally — the long simmer guarantees it. Stir the pasta twice during the covered simmer so it doesn’t clump. Leftovers 4 days refrigerated / 3 months frozen; reheat to 165°F. Homemade Cajun seasoning: smoked paprika, garlic powder, onion powder, oregano, cayenne, black pepper, kosher salt. Protein ~28g/serving estimated from USDA FoodData Central; not lab-tested.

Nutrition note

Protein is estimated at about 28g per serving, calculated from USDA FoodData Central values for the listed ingredients — this is an estimate, not a lab analysis. Actual values vary by brand and preparation.

Substitutions and tips

  • Chicken sausage works too. Swap in 1 1/2 lb sliced andouille-style chicken sausage for a smokier, spicier pot — brown the slices first, then proceed.
  • Control the heat. Use 2 tablespoons of the Cajun blend for mild, the full 3 for medium, or add extra cayenne for hot.
  • Don’t skip the lid in step 4 — trapped steam is what cooks the pasta evenly in one pot.
  • Stir twice, no more, no less. Once halfway and once near the end keeps the spaghetti from clumping without cooling the pot down.
  • Gluten-free: use your favorite gluten-free spaghetti; check it a minute or two early, as it can go from firm to mushy fast.
Overhead view of a finished pot of dirty spaghetti garnished with green onions and parsley.

Storage and reheating

Refrigerate leftovers within 2 hours in an airtight container for up to 4 days. Reheat in a skillet over medium heat with a splash of broth, or microwave in 60-second bursts, stirring between, until steaming (165°F). Freezes well for up to 3 months — thaw overnight in the fridge. The pasta softens slightly after freezing but the Cajun flavor holds.

Four glass meal-prep containers filled with portions of dirty spaghetti topped with green onions.

Frequently asked questions

Is dirty spaghetti actually spicy? It has a warm Cajun kick, but you control it — 2 tablespoons of seasoning keeps it mild and family-friendly, 3 gives it the classic medium heat.

Can I use a different pasta shape? Yes — penne or rigatoni work well in one-pot cooking since their tubes trap the sauce. Keep the same weight (12 oz) and check tenderness at 10 minutes.

Why did my pasta stick together? It likely sat too long before the first stir. Stir once at about 4 minutes and again at 8, pressing any clumps apart with tongs.

Can I make this ahead for meal prep? Absolutely — portion into containers and refrigerate up to 4 days. The flavors deepen overnight; loosen with a splash of broth when reheating.

Small bowls of sliced green onions, parsley, parmesan, hot sauce, and lemon wedges next to a pot of spaghetti.

More one-pot pasta nights

If you like one-pot pasta nights, try our 20-Minute Creamy Sun-Dried Tomato Chicken Pasta. For another 30-minute Cajun-inspired dinner, 30-Minute Turkey Taco Skillet is all one pan. Soup season? Our 30-Minute Pumpkin Turkey Chili is all one pot.

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