- Preheat your oven to 350°F. 
- If you're using fresh or frozen green beans, bring them to a quick boil until they're just tender but still crisp. 
- In a casserole dish, combine the green beans with the cream of mushroom soup, milk, soy sauce, black pepper, seasoning salt, and 1 cup of the crispy fried onions. If you’re adding cheese, mix it in as well. 
- Place the casserole dish in the oven, uncovered, and bake for 30 to 35 minutes, or until the mixture is bubbly and heated through. 
- Take the dish out of the oven and give it a good stir. Sprinkle the remaining crispy onions evenly over the top, then return the casserole to the oven. Bake for an additional 10 minutes, or until the onions turn a rich golden brown. Serve hot and enjoy!