Looking For Ham, Cheese and Potato Casserole Recipe?About a million years ago, actually the early 70's, the cafeteria at Motorola SPD fixed a really good ham, potato and cheese casserole. If I use Betty Crocker au gratin potatoes, add a little extra cheese and some ham, it comes kinda close but just isn't quite right. I've searched several cooking websites but still don't quite have it. Any suggestions?