This creamy, spicy Cajun Chicken Pasta Soup is made with tender chicken bites, fire-roasted tomatoes, and rotini ready in just 40 minutes. The rich broth transforms into a velvety sauce as the heavy cream swirls into the spicy tomato base. I love making this when I need comfort food with a kick.
Restaurant-Quality At Home
I used to boil my pasta separately for soups, thinking it would keep the broth clear, but I quickly realized that was a mistake for this recipe. Cooking the noodles directly in the pot releases starch that naturally thickens the liquid, giving it a luxurious, chowder-like consistency that you usually only get in restaurants.
The secret to getting it right is timing the cream addition perfectly. If you add the dairy while the soup is at a rolling boil, it can separate, but stirring it in off the heat creates that perfectly smooth, emulsified texture that clings to every shell.
Cajun Chicken Pasta Soup Ingredients
- For the Soup Base:
- 1 lb boneless, skinless chicken breasts, cut into 1-inch cubes
- 2 tbsp Cajun seasoning (divided)
- 2 tbsp olive oil
- 1 yellow onion, diced
- 1 red bell pepper, diced
- 2 stalks celery, diced
- 4 cloves garlic, minced
- 4 cups chicken broth (low sodium preferred)
- 1 can (14.5 oz) fire-roasted diced tomatoes, undrained
- 8 oz dried short pasta (rotini, shells, or penne)
- 1 cup heavy cream
- 1/2 cup grated Parmesan cheese
- 2 tbsp fresh parsley, chopped (for garnish)

How To Make Cajun Chicken Pasta Soup
- Sear the Chicken: Toss the cubed chicken with 1 tablespoon of the Cajun seasoning. Heat the olive oil in a large Dutch oven or heavy-bottomed pot over medium-high heat. Add the chicken and cook for 5-6 minutes until browned and cooked through. Remove the chicken to a plate and set aside.
- Sauté the Vegetables: In the same pot, add the onion, bell pepper, and celery. Sauté for 4-5 minutes until the vegetables soften, scraping up any browned bits from the bottom of the pot. Stir in the garlic and the remaining 1 tablespoon of Cajun seasoning and cook for 1 minute until fragrant.
- Simmer the Broth: Pour in the chicken broth and the undrained can of fire-roasted tomatoes. Bring the mixture to a boil, then reduce the heat to medium-low and let it simmer for 5 minutes to meld the flavors.
- Cook the Pasta: Stir in the dried pasta. Increase the heat slightly to maintain a gentle simmer. Cook for 10-12 minutes, or until the pasta is al dente. The starch from the pasta will help thicken the soup slightly.
- Finish with Cream: Reduce the heat to low. Stir in the heavy cream and the cooked chicken along with any resting juices. Simmer for 2 minutes to heat everything through—do not let it boil vigorously. Remove from heat and stir in the Parmesan cheese until melted. Serve immediately garnished with fresh parsley.

Recipe Tips
- Watch the Salt: Cajun seasoning blends vary wildly in sodium content. I recommend using unsalted chicken broth so you can control the saltiness yourself at the end.
- Pasta Texture: Since the pasta sits in hot liquid, aim for al dente or even slightly undercooked when you turn off the heat. It will continue to soften as the soup cools.
- Spice Level: For a milder soup, use only 1 tablespoon of Cajun seasoning total. If you love heat, add a pinch of cayenne pepper or a dash of hot sauce with the broth.
What To Serve With Cajun Chicken Pasta Soup
This rich soup pairs perfectly with a slice of crusty French bread or garlic toast to mop up the creamy broth. For a fresher contrast, serve it alongside a crisp green salad with a vinaigrette dressing to cut through the richness.

How To Store
Store leftovers in an airtight container in the refrigerator for up to 3 days. Note that the pasta will absorb more liquid as it sits, so you may need to add a splash of chicken broth or water when reheating. I do not recommend freezing this soup, as the cream and pasta texture will deteriorate.
FAQs
- Can I use rotisserie chicken? Yes, you can skip the searing step and simply add shredded rotisserie chicken at the end with the cream. Sauté the veggies in butter or oil to start the recipe.
- Can I use milk instead of cream? You can use half-and-half for a lighter version, but milk may curdle if the soup is too hot or acidic from the tomatoes. Heavy cream offers the most stability and best texture.
- Is this soup very spicy? It depends entirely on your brand of Cajun seasoning. Most commercial blends are moderately spicy; if you are sensitive to heat, start with half the amount and taste as you go.
Nutrition
- Calories: 485 kcal
- Total Fat: 22g
- Saturated Fat: 11g
- Cholesterol: 115mg
- Sodium: 890mg
- Total Carbohydrate: 38g
- Protein: 32g
Try More Recipes:
- Garlic Parmesan Chicken Pasta Bake Recipe
- Garlic Parmesan Chicken Pasta Recipe
- Chicken Bacon Ranch Pasta Salad Recipe
Cajun Chicken Pasta Soup
4
servings15
minutes25
minutes40
minutesCajun Chicken Pasta Soup is a creamy, comforting one-pot meal loaded with spicy chicken, tender rotini, and fire-roasted tomatoes. Ready in just 40 minutes, this easy weeknight dinner delivers restaurant-quality flavor with a velvety broth that warms you up instantly.
Ingredients
1 lb boneless, skinless chicken breasts, cut into 1-inch cubes
2 tbsp Cajun seasoning (divided)
2 tbsp olive oil
1 yellow onion, diced
1 red bell pepper, diced
2 stalks celery, diced
4 cloves garlic, minced
4 cups chicken broth (low sodium preferred)
1 can (14.5 oz) fire-roasted diced tomatoes, undrained
8 oz dried short pasta (rotini, shells, or penne)
1 cup heavy cream
1/2 cup grated Parmesan cheese
2 tbsp fresh parsley, chopped (for garnish)
Directions
- Toss the cubed chicken with 1 tablespoon of the Cajun seasoning. Heat the olive oil in a large Dutch oven or heavy-bottomed pot over medium-high heat. Add the chicken and cook for 5-6 minutes until browned and cooked through. Remove the chicken to a plate and set aside.
- In the same pot, add the onion, bell pepper, and celery. Sauté for 4-5 minutes until the vegetables soften, scraping up any browned bits from the bottom of the pot. Stir in the garlic and the remaining 1 tablespoon of Cajun seasoning and cook for 1 minute until fragrant.
- Pour in the chicken broth and the undrained can of fire-roasted tomatoes. Bring the mixture to a boil, then reduce the heat to medium-low and let it simmer for 5 minutes to meld the flavors.
- Stir in the dried pasta. Increase the heat slightly to maintain a gentle simmer. Cook for 10-12 minutes, or until the pasta is al dente. The starch from the pasta will help thicken the soup slightly.
- Reduce the heat to low. Stir in the heavy cream and the cooked chicken along with any resting juices. Simmer for 2 minutes to heat everything through—do not let it boil vigorously. Remove from heat and stir in the Parmesan cheese until melted. Serve immediately garnished with fresh parsley.
