Steam green beans until tender-crisp, about 8-10 minutes. Remove and drain. Meanwhile, mix bouillon and water; stir to blend. Heat small heavy-bottomed skillet (I use cast iron). Pour in bouillon mixture, Balsamic, and garlic salt. Blend. When bubbling, add green beans and cook until liquid is absorbed and beans have a nice nut brown glaze, about 10 minutes. Sprinkle with Parmesan and serve.