In a large skillet set over medium heat, add the butter or oil. Add the sausage and cook until browned on both sides, about 5 minutes. Add the celery and saute for 3 minutes, then add the onion, shallot, garlic, and rice.

Toast the rice for 5 minutes or until it turns bright white. Slowly pour in the broth, scraping up the browned bits from the bottom of the pan. Bring the mixture to a simmer, add the garlic powder, salt, pepper, paprika, pepper, and celery salt.

Reduce heat to low, cover and cook for 15 minutes. Remove the lid, add the chicken, peas, and parsley. Cover and continue cooking for an additional 5 minutes or until the rice is tender and cooked throughout.

Remove from heat and let stand, covered for 5 minutes before serving.