In a large skillet, heat olive oil over medium heat. Add diced chicken, salt, and pepper. Cook until chicken is browned and cooked through, about 7-10 minutes.

Remove chicken from skillet and set aside.

In the same skillet, add garlic and cook for 1 minute until fragrant.

Add chicken broth and bring to a boil. Stir in orzo and reduce heat to a simmer. Cook for about 10-12 minutes until orzo is tender.

Stir in the cooked chicken, spinach, cherry tomatoes, oregano, and butter into the orzo. Cook for an additional 2-3 minutes until spinach wilts.

Pour in heavy cream and parmesan cheese, stirring until well combined and creamy. Cook for another 2 minutes.

Remove from heat and serve warm, garnished with extra parmesan if desired.