In a large stock pot over medium heat, combine turkey and broth. Bring to a boil. Remove seasoning packet from rice; set packet aside and add rice to the pot. Cover and remove from heat.

In a separate pan over medium heat, sauté onions, carrots, & celery in melted butter for 5 minutes. Add mushrooms and sauté 2 more minutes.

Season with contents of seasoning packet and salt and pepper. Continue cooking vegetables until desired softness is reached, about 5-10 additional minutes.

Sprinkle in flour gradually while whisking constantly until a roux forms. Sauté about 4-5 minutes being careful not to burn the roux.

Slowly pour in half and half, whisking the whole time. Cook about 5 more minutes or until thick. Pour veggie mixture into the large turkey/broth pot.

Simmer over medium heat until rice is done, about 15-20 minutes. Serve with warm rolls or crackers. Enjoy!