01 -
In a large mixing bowl, whisk together the cream of mushroom soup and whole milk until smooth. Blend in the soy sauce and black pepper.
02 -
Add the drained green beans to the bowl and gently stir to ensure beans are fully coated with the soup mixture.
03 -
Fold in 1/2 cup of the crispy fried onions and transfer the mixture to a 2-quart baking dish, spreading evenly.
04 -
Bake in a preheated oven at 350°F for 30 minutes until heated through. Remove dish from the oven and briefly stir the casserole.
05 -
Scatter the remaining crispy fried onions evenly over the surface and return to the oven. Bake for an additional 5 to 10 minutes until the onions are golden and crisp.