Mix potatoes chicken soup, margarine and onion in a big bowl until well blended. Add cheese and mix well. Pour into small casserole, like an 8x8. Bake in preheated 350 degree oven about 45 minutes or until casserole is heated through and cheese is melted.
Remove from oven and sprinkle with more cheese if you like. Serves 6-8.
I hope you continue to enjoy our series of "Cloned Recipes"!