Before You Begin
Preheat and prepare your cookware as needed. Cooking times and results may vary depending on your equipment and ingredients.
Sear the Chicken
Heat olive oil in a large pot over medium-high heat. Season the chicken evenly with Cajun seasoning, salt, and pepper. Sear for several minutes until lightly golden on the outside. Remove and set aside; the chicken will finish cooking later and should reach 165°F (74°C) internally before serving.
Cook the Vegetables
Add butter to the same pot. Add onion, celery, and bell pepper and cook, stirring occasionally, until softened. Stir in garlic and thyme and cook briefly until fragrant.
Cook Pasta in Broth
Pour in chicken broth and add pasta. Bring to a gentle boil, then reduce heat and simmer 8–10 minutes, stirring occasionally, until pasta is tender but still slightly firm.
Finish Cooking Chicken & Add Dairy
Reduce heat to low. Shred or dice the chicken and return it to the pot. Simmer gently until chicken is fully cooked and reaches an internal temperature of 165°F (74°C). Stir in cream and Parmesan until melted and smooth.
Adjust and Serve
Taste and adjust seasoning as needed. Serve warm.