In a large stock pot, melt the unsalted butter, add the red bell pepper, carrots, celery, onions, mushrooms, and frozen corn.
Cook on high for 5 minutes until vegetables are soft (stirring often). Then reduce to medium and cook for an additional 10 minutes (stir as often as needed--if vegetables start to stick add a little stock to the pot). Season vegetables with salt, pepper, smoke paprika, and parsley.
Add the potato flakes and mix for 30 seconds coating the vegetables with the powder flakes. Then add in the turkey stock.
Stir well and add turkey. Simmer for 20 minutes--soup will begin to thicken. Ladle soup into bowls and enjoy.