Heat olive oil in a large skillet over medium-high heat. Season chicken with Cajun seasoning, salt, and pepper, then cook until golden and fully cooked. Remove and set aside.
In the same skillet, add garlic and sauté for 30 seconds until fragrant.
Add orzo and chicken broth. Stir and simmer until the orzo is tender and most of the liquid is absorbed.
Lower the heat and stir in heavy cream and parmesan cheese until the sauce becomes creamy.
Return chicken to the skillet, mix well, and cook for another 2-3 minutes.
Garnish with fresh parsley and serve warm.