Preheat oven to 350 degrees F.
In a large mixing bowl combine, cream of mushroom soup, green beans, 1/2 cup shredded cheddar cheese, milk, bacon bits, one cup of fried onion, and seasonings.
Stir until thoroughly mixed.
Pour mixture into a greased casserole or pie dish.
Top with a layer of remaining cheddar cheese, and then with the remaining fried onion.
Bake for 30 to 35 minutes until the top if bubbling and golden brown.