Season sliced chicken with Cajun seasoning, salt, and pepper.
Heat olive oil in a large skillet over medium heat. Cook chicken 4–5 minutes per side until golden and fully cooked. Remove and set aside.
In the same pan, melt butter and sauté garlic until fragrant.
Add orzo and toast lightly for 1–2 minutes.
Pour in chicken broth and bring to a simmer. Cook 8–10 minutes, stirring occasionally, until orzo is tender.
Stir in heavy cream, parmesan cheese, smoked paprika, and red pepper flakes.
Return cooked chicken to the skillet and simmer 2–3 minutes until sauce thickens.
Garnish with parsley and serve warm.