Combine Everything:

Stir in the grated Parmesan cheese and mix until it melts and creates a smooth, creamy sauce.
Add the cooked chicken back into the skillet, along with the cooked tortellini. Toss everything together until the tortellini is coated with the creamy Cajun sauce and the chicken is evenly distributed.
Finish and Serve:

Taste the dish and adjust the seasoning with more Cajun seasoning, salt, or pepper if desired.
Garnish with fresh parsley or basil for an added burst of color and freshness.