1
Bring a large pot of salted water to a boil. Add the pasta, stir, and cook for 7 minutes. Drain and return the pasta to the pot, toss with olive oil.
2
Meanwhile, heat the chicken stock in a large stock pot over medium heat. Bring to a simmer, add the chicken breasts, and poach until cooked through, 8-10 minutes. Transfer the chicken to a plate and shred with two forks or your hands.
3
Add the onion, carrot and celery to the chicken broth, cover, and cook until tender, about 10 minutes. Stir in the chicken and pasta. Season with salt and pepper.
4
Divide the soup between bowls and garnish with dill.