Prepare the Green Beans

1. Blanch: Cook green beans in boiling water until bright green and tender-crisp, then cool under cold water.
2. Drain: Ensure green beans are well-drained to avoid a watery casserole.

Mix the Casserole Base

1. Combine Ingredients: In a bowl, stir together cream of mushroom soup, milk, soy sauce, garlic powder, black pepper, and 1 cup of fried onions.
2. Fold in Green Beans: Gently mix in the blanched green beans until they’re evenly coated with the creamy mixture.

Bake the Casserole

1. Preheat and Pour: With your oven ready at 350°F, transfer the green bean mixture into a casserole dish.
2. Bake: Allow the casserole to bake uncovered, letting it bubble up and start to brown.

Add the Crispy Topping

1. Top with Onions: Sprinkle the remaining fried onions over the top for that essential crispy finish.
2. Final Bake: Return to the oven until the onions are golden brown and the casserole is piping hot.