In a bowl, mix ground turkey, sage, breadcrumbs, parmesan, garlic powder, onion powder, ground sage, Creole seasoning, salt, and pepper. Chill for 10 minutes.
Heat 2 tbsp butter in a skillet over medium heat. Roll the turkey mixture into meatballs and sear until browned and cooked through. Remove and set aside.
In the same skillet, add the remaining butter and shallot. Sauté until softened and translucent, scraping up any browned bits.
Stir in orzo and sage. Toast for 3 minutes, stirring often.
Add chicken broth and roasted chicken base. Cover and simmer until orzo is tender, about 7 minutes.
Remove lid and stir in Boursin cheese until melted and creamy. Adjust seasoning to taste.
Return the meatballs to the skillet, toss to coat, and finish with parmesan before serving.