How to Make It
In a large frying pan, simmer the chicken broth and the oregano until 1/2 cup of liquid remains in the pan, about 4 minutes. Stir in the chicken cubes, cover the pan, and remove it from the heat. Let the chicken steam in the hot broth until just done, about 8 minutes.
In a large pot of boiling, salted water, cook the ziti until just done, about 13 minutes. Drain the pasta and toss it with the chicken mixture, the feta, lemon juice, salt, pepper, and parsley. Stir until the cheese is completely melted. Toss in the cherry tomatoes.