From the AllRecipes site. I guess this was traditionally an English dish made with leftovers from Xmas dinner. Not sure this resembles the traditional dish much, but my family all like it. Pretty quick to make. I usually don't have leftover baked potatoes, so I mae the potatoes in the afternoon and let them cool. Then I halve them lengthwise, and the slice them about 1/4 inch thick, or maybe less. I've also occasionally tossed in other leftover vegetables, such as peas or carrots. I suppose you could serve with catsup or salsa or something, but we like it just as-is. I usually serve a side of cantaloupe with it.