Coat the chicken in Cajun seasoning and sear in olive oil over medium-high until cooked through; set aside.

In the same pan, saute the bell pepper, celery, and onion until softened, about 6 minutes.

Cook the bowtie pasta in salted water until al dente and drain.

Pour the cream into the veggies and simmer 4 minutes, then stir in the Parmesan.

Return chicken, add pasta, and toss until coated.