In a large pot, bring chicken broth to a boil.
Add orzo and cook until tender, about 7-10 minutes.
In a separate bowl, whisk the eggs and lemon juice until well combined.
Slowly add 1 cup of the hot broth to the egg mixture, whisking constantly to temper.
Reduce the heat and slowly stir the egg-lemon mixture into the pot.
Add the cooked chicken and heat gently—do not boil.
Season with salt and pepper to taste.
Serve hot, garnished with fresh parsley.