Pour diced potatoes into greased 9"x13" baking pan. Top with crumbled bacon. Sprinkle cheddar cheese evenly over bacon and potatoes. Beat eggs and milk together, then pour over casserole. Place in a preheated oven at 350 degrees. Bake for 30 min or until knife inserted in center come out clean. Remove from oven and let stand 5 min, then serve. Enjoy a quick and easy casserole for breakfast or any time.