This creamy, slightly spicy pasta is everything you want on a busy weeknight: bold flavor, minimal cleanup, and a dinner-ready in about 30 minutes. The One Pot Cajun Chicken Pasta name tells you exactly what this is — tender chicken seared with Cajun spice, fire-roasted tomatoes, and rotini simmered right in the same pan until the sauce is thick, silky, and clings to every spiral. It’s a cozy, comforting plate with bright pops of bell pepper and green onion for freshness. Follow the step-by-step instructions below and you’ll have a delicious family-friendly meal that feels special without the fuss.
Why you’ll love this recipe
This one-pot method saves time on preparation and cleanup, and it produces a sauce that’s infused with every ingredient’s flavor because nothing is drained away. The cream cheese creates a luxuriously smooth finish while the Cajun seasoning brings a warming, smoky heat. Rotini soaks up the sauce beautifully, making every forkful satisfying. It’s easy to adapt: swap the chicken for a different protein if you prefer, add more vegetables, or make it milder or spicier depending on your taste.
Ingredients
- 1 pound boneless, skinless chicken breasts, or thighs
- 1 tablespoon Cajun seasoning, divided
- 1 tablespoon extra virgin olive oil
- 1 small yellow onion, minced
- 1 large red bell pepper, seeded and diced
- 1 tablespoon minced garlic
- 15 ounces fire-roasted diced tomatoes, undrained
- 2 cups low-sodium chicken stock
- 8 ounces rotini pasta, ½ box
- 4 ounces full-fat or reduced-fat cream cheese, softened and cut into cubes *do not use fat-free cream cheese
- Green onions, for serving
Equipment
- Large wide skillet or shallow Dutch oven with a lid
- Sharp knife and cutting board
- Wooden spoon or heatproof spatula
- Tongs
- Measuring cups and spoons
Taste and texture notes
The sauce is silky and slightly tangy from the fire-roasted tomatoes. The cream cheese rounds out acidity and provides body so the rotini becomes glossy and saucy rather than watery. Searing the chicken first locks in juices and gives a toastiness that contrasts nicely with the bright pepper and onion. If you prefer a looser sauce, add up to ½ cup more chicken stock; for a thicker finish, simmer a bit longer before adding the cream cheese.
Make-ahead and storage
This dish reheats well. Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat gently on the stovetop over low heat, adding a splash of chicken stock or water to loosen the sauce as needed. Avoid microwave reheating at full power for long stretches, as the cream cheese can separate; brief intervals with stirring work if using a microwave.
Serving suggestions
Serve the pasta hot, scooped into bowls and garnished with sliced green onions for a fresh, oniony pop. A simple green salad dressed with lemon or a side of steamed greens balances the richness. A wedge of lemon on the side brightens the flavors if you want extra acidity.
Step-by-step instructions
- Prepare the chicken: Pat the 1 pound boneless, skinless chicken breasts or thighs dry with paper towels. Sprinkle half of the 1 tablespoon Cajun seasoning over both sides of the chicken so the seasoning coats it evenly.
- Sear the chicken: Heat 1 tablespoon extra virgin olive oil in a large wide skillet or shallow Dutch oven over medium-high heat. When the oil shimmers, add the seasoned chicken. Sear the chicken for about 3 to 4 minutes per side, until golden brown on the outside; the chicken does not need to be fully cooked through in this step. Use tongs to flip. Once seared, transfer the chicken to a plate and set aside temporarily.
- Cook the aromatics and peppers: Reduce the heat to medium. Add the minced 1 small yellow onion and the diced 1 large red bell pepper to the same pan. Sauté, stirring occasionally, until the onion is translucent and the pepper has softened, about 4 minutes. If the pan looks dry, add an extra splash of olive oil, but typically the fond left from searing the chicken provides enough flavor.
- Add the garlic: Stir in the 1 tablespoon minced garlic and the remaining half of the 1 tablespoon Cajun seasoning. Cook everything together for about 30 seconds to 1 minute, just until the garlic is fragrant. Be careful not to let the garlic brown.
- Add tomatoes and stock: Pour in the full 15 ounces fire-roasted diced tomatoes with their juices, followed by 2 cups low-sodium chicken stock. Stir to combine, scraping up any browned bits from the bottom of the pan. These bits add flavor to the sauce.
- Return chicken to the pan: Nestle the seared chicken pieces back into the pan so they sit in the tomato-stock mixture. Spoon some of the liquid over the chicken so it warms through evenly.
- Add the pasta: Scatter 8 ounces rotini pasta (which is half a standard 16-ounce box) into the mixture, pressing the pasta down so it is mostly submerged in the liquid. Do not stir vigorously; you want the pasta to start absorbing liquid without clumping.
- Simmer with a lid: Bring the mixture to a gentle boil over medium-high heat, then reduce the heat to maintain a steady simmer. Cover the skillet or pot with a lid and let everything cook for 12 to 15 minutes, stirring once or twice during cooking to prevent the pasta from sticking together and to ensure even cooking. Check the pasta at about 12 minutes for doneness; it should be tender but still have a slight bite (al dente).
- Check chicken doneness: While the pasta cooks, check that the chicken reaches an internal temperature of 165°F (74°C). If the chicken is not fully cooked after the pasta has reached al dente, continue simmering uncovered for a few minutes longer until the chicken is cooked through. You can also slice the chicken into pieces to speed finishing and to distribute it more evenly through the pasta.
- Add the cream cheese: Once the pasta is cooked and the chicken is done, reduce the heat to low. Add 4 ounces full-fat or reduced-fat cream cheese, softened and cut into cubes, directly into the pan. Stir the cream cheese into the hot pasta mixture until it is fully melted and the sauce is smooth and creamy. Do not use fat-free cream cheese, as it will not give the same texture.
- Combine and adjust: Stir gently to combine the sauce, pasta, vegetables, and chicken. Taste and adjust seasoning if needed — add a pinch of salt or a dash more Cajun seasoning if you want more heat. If the sauce is too thick, stir in a tablespoon or two of chicken stock at a time until you reach the desired consistency.
- Serve: Divide the pasta among bowls or plates and sprinkle with sliced green onions for a bright, fresh garnish. Serve immediately while hot.
Tips for success
- Use room-temperature chicken to promote even searing. Cold chicken can lower the pan temperature and cause sticking.
- Do not skip searing the chicken — those browned bits create a deeper, more complex sauce than starting with raw chicken alone.
- Cut the cream cheese into cubes and let it soften before adding so it melts quickly and evenly without clumping.
- Keeping the lid on during the simmer helps the pasta cook through in the flavorful liquid. Stir once or twice to prevent sticking, but avoid constant stirring which can make the pasta release starch and create a gluey texture.
- If you prefer more vegetables, stir in quick-cooking greens (spinach or baby kale) at the end and wilt them in the residual heat for added color and nutrients.
Variations
- Mild version: Reduce the Cajun seasoning to 1 teaspoon and add a pinch of smoked paprika for flavor without heat.
- Extra veggie: Add sliced zucchini or mushrooms with the onion for additional texture and flavor.
- Seafood swap: Substitute shrimp for the chicken. Add peeled, deveined shrimp during the last 4 to 6 minutes of cooking so they turn pink and opaque but remain tender.
Final thoughts
This One Pot Cajun Chicken Pasta is a reliable crowd-pleaser that balances indulgent creaminess with lively Cajun spice. It’s forgiving enough for a weeknight, but tasty enough to serve when friends drop by. The one-pan approach makes it a practical choice, and the bright finishes — red bell pepper and green onions — keep the dish from feeling heavy. Make it your own with a few tweaks, and enjoy the comfort of a flavorful, effortless dinner.
One Pot Cajun Chicken Pasta
Equipment
- large stockpot or deep skillet
- Knife
- Cutting Board
- Measuring Spoons
- Measuring Cups
- Spatula or wooden spoon
- ladle or large spoon
Ingredients
- 1 pound boneless skinless chicken breasts or thighs cut into 1-inch cubes
- 1 tablespoon Cajun seasoning divided
- 1 tablespoon extra virgin olive oil
- 1 small yellow onion minced
- 1 large red bell pepper seeded and diced
- 1 tablespoon garlic minced
- 15 ounces fire-roasted diced tomatoes undrained
- 2 cups low-sodium chicken stock
- 8 ounces rotini pasta about 1/2 box
- 4 ounces cream cheese full-fat or reduced-fat, softened and cut into cubes (do not use fat-free)
- green onions for serving, sliced
Instructions
- Pat the chicken dry and cut into 1-inch cubes. Toss the chicken with 1/2 tablespoon of the Cajun seasoning until evenly coated.
- Heat the olive oil in a large stockpot or deep skillet over medium-high heat. Add the seasoned chicken and cook, stirring occasionally, until the pieces are lightly browned on the outside, about 2–3 minutes per side.
- Add the minced onion and diced red bell pepper to the pot and sauté for 2–3 minutes, until the onion begins to soften. Stir in the minced garlic and cook for 30 seconds until fragrant.
- Pour in the chicken stock and undrained fire-roasted diced tomatoes. Add the remaining 1/2 tablespoon Cajun seasoning and stir, scraping up any browned bits from the bottom. Cover and bring to a boil.
- Once boiling, remove the lid, add the rotini pasta, and reduce heat to medium-low. Cover and simmer, stirring every 2 minutes, until the pasta is tender and most of the liquid is absorbed, about 10 minutes.
- Uncover, add the cubed cream cheese, and stir until it melts into a creamy sauce. Continue cooking uncovered, stirring frequently, until the pasta is fully cooked and sauce is smooth, about 4–5 minutes.
- Garnish with sliced green onions and serve immediately.
Notes
- Make Cajun seasoning by combining 1 tsp kosher salt, 1/2 tsp each garlic powder, onion powder, smoked paprika, and pepper, plus a pinch of cayenne.
- To use andouille sausage, substitute 12 ounces sliced sausage and reduce Cajun seasoning to 1/2 tablespoon.
- For a meatless version, omit chicken and reduce Cajun seasoning to 1/2 tablespoon.
- Adjust spice by adding 1–2 teaspoons hot sauce or reducing the Cajun seasoning.
- Use gluten-free pasta to make this gluten-free.
