Preheat oven to 350 degrees.
Transfer Simply Potatoes Mashed to a lightly greased 9x13-inch pan and use a rubber spatula to smooth into an even layer.
Season potatoes to taste with pepper.
In a large bowl, combine green beans, soup, milk, soy sauce, cheddar cheese, and half of French fried onions. Stir to mix and pour on top of potatoes.
Sprinkle remaining onions on top.
Place in oven an bake for 25 to 30 minutes.