We have a version of chow mein in El Salvador. The main difference I would say is chayote. We use it in many dishes and this one is an example of it. In the tiendas (small shops in neighborhoods), people sell these chow mein packets that have all the seasoning you need to make this dish.
The packet includes soy sauce, condiments, and the noodles.
In this recipe, I am not using a packet, I am using soy sauce, noodles and condiments bought separately. For the condiments, I am using just salt, garlic, and no bullion.
You will see how easy it is when you have all the ingredients in hand. Most people use chicken to make it, but I personally like shrimps better in this dish.
To make it with chicken, just cut chicken in small pieces before cook it in the stove as per my recipe below.