Preheat the oven to 350°F (175°C).
In a large mixing bowl, combine the green beans, cream of mushroom soup, milk, and soy sauce.
Season the mixture with salt and pepper to taste.
Transfer the mixture to a 1.5-quart baking dish, spreading it evenly.
Bake uncovered in the preheated oven for 25 minutes.
Sprinkle the crispy fried onions over the top and return to the oven.
Bake for an additional 10 minutes or until the onions are golden brown.
Remove from the oven and let it cool for a few minutes before serving.