Preheat the oven to 350 degrees F (175 degrees C).
Spread the dried potatoes in the bottom of an ungreased 9x13 inch baking dish. Cover with a layer of sausages. Mix together the condensed soup, milk and butter; pour over the ingredients in the dish. Layer in the cheddar cheese, cubed ham and mushrooms. Dot with cream cheese cubes, and sprinkle with dried chives.
Bake uncovered for 30 minutes in the preheated oven. Sprinkle the French fried onions over the top, and return to the oven for an additional 15 minutes, or until browned.
