Break the turkey frame or cut in half with kitchen shears and place in a large pot. Add the water, broth, onion, garlic, and salt. Bring to boiling; reduce heat to low. Cover and simmer for 1½ hours.
Remove the turkey frame from the pot and place on a cutting board. After cooling, cut meat off bones and coarsely chop meat. Add enough additional turkey to equal 3 cups. Set aside. Discard bones. Strain the broth.
Return the broth to the pot. Stir in the Italian seasoning, and pepper. Stir in the vegetables, turkey, pasta, and the additional can of broth. Return to boiling, then reduce to simmer for 12 to 15 minutes or until pasta and vegetables are tender. Stir in the beans and peas; heat through. Add additional salt and pepper, as desired to taste.