Season with ½ teaspoon of salt and ¼ teaspoon of pepper.
Heat a large pot over medium-high heat.
Place the coconut oil in the hot pot, then add the chicken. Sauté until cooked through.
Remove the chicken from the pot and set aside.
Turn the heat down to medium and melt the butter in the pot. Add the celery and onion and cook down for 2 to 3 minutes, stirring constantly. Add the garlic and mushrooms.
Return the cooked chicken to the pot. Add the remaining salt and pepper oregano and poultry seasoning and stir to combine. Turn the heat back to a boil.