Prepare homemade stock by placing water, chicken thighs, unskinned yellow onion, garlic, whole green bell pepper, carrots, and celery stalks into a large pot and boiling for an hour.
Strain stock. Dice and mince vegetables as directed and reserve.. Shred chicken off the bone and reserve.
Preheat oven to 350°F.
Melt butter in cast iron skillet.
Add ingredients to a large bowl and mix until smooth.
Bake for 20-22 minutes.
Allow to cool.
Sauté vegetables in butter until tender.
Add garlic and cook.
Add cornbread soup seasoning, reserved shredded chicken, and gradually add stock until moist.
Pour into a casserole dish and bake 40-45 minutes.
Allow to cool for 10 minutes before serving.
