2 Lb. All purpose potatoes, peeled and sliced
1 Lb. Ham, diced in ½-inch cubes
1 Quart Whole milk
1 Cup Swiss cheese, grated
1/2 Cup Prepared horseradish
Preheat oven to 375º. Peel the potatoes and slice them ¼-inch thick. Place them along with the milk in a large pot with a lid. Bring to a simmer, cover and simmer gently for 5 minutes. Add all remaining ingredients, combining well. Season with salt and pepper, then transfer to a 12-Cup casserole dish. Bake for 45 minutes-1 hour, until bubbly and hot. Allow to rest for 10-15 minutes before serving.