Season chicken breasts with salt and pepper.
In a large skillet, heat olive oil over medium-high heat.
Add chicken breasts and cook until browned on both sides. Remove and set aside.
In the same skillet, add onion and garlic. Cook until softened.
Stir in rice, chicken broth, and dried thyme. Bring to a boil.
Reduce heat, cover, and simmer for 20 minutes.
Return chicken to the skillet and pour in heavy cream. Cook until chicken is cooked through.
Stir in Parmesan cheese until melted.
Garnish with fresh parsley before serving.
