This Dirty Spaghetti Recipe takes everything you love about Louisiana dirty rice and tosses it with a big pile of spaghetti. Ground beef, smoky andouille sausage, and the Cajun holy trinity simmer in a rich, savory gravy that coats every single strand. There is no red sauce here, just deep brown, peppery comfort that tastes like it cooked all afternoon but actually comes together in about 40 minutes.
12ouncesandouille sausage340g, sliced into half-moons
1mediumyellow onionabout 1 cup or 150g, diced
1green bell pepperdiced
2celery stalkscelerydiced
4clovesgarlicminced
2tablespoonsunsalted butter
2tablespoonsall-purpose flour
2tablespoonstomato paste
3cupslow-sodium beef broth720ml
1tablespoonWorcestershire sauce
1tablespoonCajun seasoning
1teaspoonsmoked paprika
1/2teaspoondried thyme
1/2teaspoonblack pepper
1cupreserved pasta water240ml
1 to 2teaspoonsLouisiana hot sauceoptional
For Garnish
3green onionsthinly sliced
2tablespoonsfresh parsleychopped
kosher saltto taste
Instructions
Dice the onion, bell pepper, and celery into 1/4-inch pieces. Mince the garlic, slice the sausage into thin half-moons, and combine the Cajun seasoning, smoked paprika, thyme, and black pepper in a small bowl.
Boil the spaghetti in salted water for 1 to 2 minutes less than package directions. Reserve 1 cup of pasta water, then drain the pasta without rinsing.
Heat olive oil in a Dutch oven over medium-high heat. Brown the andouille sausage for 3 to 4 minutes, then transfer to a plate, leaving the drippings in the pot.
Add the ground beef to the same pot and break it into crumbles. Cook for 6 to 8 minutes until browned, then spoon out excess grease, leaving about 2 tablespoons behind.
Add the onion, bell pepper, and celery to the beef and cook for about 5 minutes until softened. Stir in the garlic for 30 seconds, then add the Cajun seasoning mixture and stir for 1 minute.
Push the meat and vegetables to the sides, add butter to the center, then sprinkle in the flour and stir everything for 2 minutes. Add tomato paste and stir for 1 minute, then slowly pour in the beef broth while scraping up browned bits. Stir in Worcestershire sauce, return the sausage, and simmer for 8 to 10 minutes until thickened.
Add the drained spaghetti to the pot and toss with tongs until coated. Pour in about 1/2 cup of reserved pasta water and toss for 2 minutes, adding more water if needed. Taste and season with salt and hot sauce.
Remove from heat and let rest for 2 minutes. Scatter green onions and parsley over the top and serve hot with extra hot sauce on the side.
Notes
Undercook the pasta slightly: The spaghetti finishes in the gravy, so pulling it early keeps it from turning soft.
Save the pasta water: The starch helps the gravy cling to the noodles and gives it a silky finish.
Brown the meat well: Deep browning builds the dark, savory base that gives the dish its name.
Do not skip the roux: Cooking the flour for a full 2 minutes prevents a pasty taste.
Add the broth slowly: Pouring gradually while stirring keeps the gravy smooth and lump free.
Use low-sodium broth: Cajun seasoning and andouille are already salty, so this gives you control.
Taste before salting: Season at the end, after the flavors have come together.
Let it rest: Two minutes off the heat lets the gravy thicken to the perfect coating consistency.
Choose a wide pot: More surface area means easier tossing and better browning.
Storage: Refrigerate leftovers in airtight containers for up to 4 days, or freeze for up to 2 months. Reheat on the stovetop with a splash of broth or water.