I've made this soup many times for my family for many years from either a rotisserie chicken, or left over chicken. You can follow the same recipe using leftover turkey. It is a recipe from scratch so use your taste to add more of this or that.
Take the skin and meat off the bone of the thigh, legs,wings and use about half of the breast meat. Set aside.
In a large pot, heat about 2 tablespoons of olive oil. Add 3 cloves of chopped garlic and brown in the oil. Next add your chopped onion and cook until tender. Add the sliced carrots, sliced celery, canned tomatoes and cook about 5 minutes. Next add all of your seasonings to the vegetables and continue to cook about 5 minutes on medium. Add your two boxes of chicken stock and the cut up chicken. Turn heat on high just until boiling. Once soup comes to a good boil, lower the heat to medium. Cover with a top and cook about 30-45 minutes.
Once the vegetables are tender, add 1 diced potato (optional) and about 1/2 cup of Orzo. Drizzle additional olive oil in the soup. Continue cooking and stirring until the pasta is done.