Creating Ultimate Green Bean Casserole is straightforward when you follow these steps:

1. Preheat Oven: Begin by preheating your oven to 350°F (175°C).
2. Prepare Green Beans: Trim and wash the fresh green beans. If you prefer, you can blanch them in boiling water for 3-4 minutes and then shock them in ice water to retain their color and crunch.
3. Mix the Sauce: In a large mixing bowl, combine the cream of mushroom soup, milk, soy sauce, and any optional seasonings like garlic or onion powder. Mix until smooth.
4. Combine Ingredients: Add the trimmed green beans to the bowl and stir until they are coated with the creamy sauce.
5. Add Fried Onions: Gently fold in about half of the French fried onions, reserving the rest for topping.
6. Transfer to Baking Dish: Pour the green bean mixture into a 2-quart baking dish, spreading it evenly.
7. Bake: Place the baking dish in the preheated oven and bake for about 30 minutes.
8. Add Topping: After 30 minutes, remove the casserole and sprinkle the remaining French fried onions on top. Return it to the oven.
9. Finish Baking: Bake for an additional 5-10 minutes or until the onions are golden brown and the casserole is bubbly.
10. Serve: Once done, remove the casserole from the oven and let it cool for a few minutes before serving.

By following these simple steps, you’ll create a delicious Ultimate Green Bean Casserole that will be the star of your meal!