Prepare the meat and vegetables. Dice the onion, celery and carrot. Mince the garlic.
Cut the turkey into cubes or shred it into bite-sized pieces.
Heat the olive oil in a large pot over medium-high heat. Add the diced onion and sauté 3-4 minutes, until the onion is translucent.
Add the carrots, celery and minced garlic, and sauté another 4-5 minutes until the vegetables begin to soften.
Add the turkey, orzo pasta, salt, pepper and Italian seasoning and stir well.
Pour chicken stock into the pot, and bring the soup to a simmer. Allow the soup to simmer for 10-15 minutes, until the vegetables are tender, and the orzo is cooked through.
Season with additional salt and pepper, to taste.