Preheat the oven to 350°F.
If using fresh or frozen green beans, boil just until tender crisp (see notes).
In a large bowl, combine green beans with soup, milk, soy sauce, pepper, salt, 1 cup of crispy onions, and cheese. Transfer to a 2qt or 8×8 baking dish.
Bake uncovered for 30 to 35 minutes or bubbly.
Remove from oven and stir. Top with remaining onions and return to oven for an additional 10 minutes or until golden.
