Leftover Turkey Soup

I literally throw most every leftover into my soup. If you feel like it, even add sweet potatoes.
turkey soup
Turkey Carcass, meat removed 
1 Sweet Onion, whole
1 bunch of Parsley
2 stocks of Celery
2 Carrots
Use any leftover Gravy
Use any leftover Stuffing
Use any leftover Green Bean Casserole, or Veggie
Garlic Salt & Pepper, to taste

Put all ingredients into large soup pot and barely cover with water or turkey stock.  Simmer for one hour on medium-high.  When finished simmering, take out turkey carcass and taste the soup.  At this time, you now need to add, garlic salt and pepper.  This should be the best soup ever!