Place the cooled pasta in a large mixing bowl. Add the milk/cheese mixture, one scoop at a time, and mix with your hands (a spoon will also do). Add half & half as necessary to help mix the cheese mixture into the pasta.
Place a layer of the pasta mixture in the bottom of an oven-safe bowl or casserole dish. Place slices of the Pinconning cheese on top of the pasta and cheese mixture, then cover the Pinconning cheese with more pasta and cheese. Top with a generous sprinkle of the sharp white cheddar cheese, and then top the white cheddar cheese with the Panko crumbs.