Many thanks for your quick response. The leeks? Slice with white part and some of the green very thin, seperate the slice(s) and add to each layer of this dish. Add butter and flour and enogh milk to make it appear to have a sauce. A ham steak is what I use and each layer has 2 or 3 slices of Swiss and Mild or as you like Cheddar with the cheeses being on the top layer. S & P to taste. Have just switched to Himalayan Pink Salt for the nutrients but it has no Iodine. Sorry this is not a cooking blog. Have a lovely Monday.