I don't know where I got this recipe, but I've had it for years and we always enjoy it. The onion, sharp cheddar and Worcestershire sauce gives this a nice bite. I often use 2% sharp cheddar cheese and skim milk and the taste doesn't suffer, so feel free to use the lighter options if you would like to. Also, the original recipe says to use grated onion, but I don't ever go to this much trouble opting instead to just use my food processor to chop them finely. I often add ham and/or vegetables to make a one dish supper.