Melt olive oil in a large pan over medium heat. Add onion, carrots celery and cook until softened. Add dried marjoram, flour, and seasoning packet from the rice; stir to combine.
Add rice, chicken stock and chicken soup; bring to a boil. Cover, lower to a simmer, and let cook for 15 minutes.
Heat the cream and milk in a small saucepan over low heat. Stir into the soup. Stir in the shredded chicken.
Cook about 30 minutes or until the rice is cooked. Season with salt and pepper to taste.
Notes
Can be reheated and actually tastes better on day 2!