Cut chicken into small cubes then poach in broth until done.
Add half of the chopped cilantro, lemon juice, pepper to the chicken and broth.
Add the miniature seashells pasta and cook for another 8 to 10 minutes.
If you want to thicken the mixture use 1 tablespoon of cornstarch to some of the liquid about a ½ cup and whisk in a small bowl then add to the chicken mixture and stir it will thicken and then turn off. a
Top with the last of the cilantro and serve.