Sweet Potato Colcannon

This dish is a twist on the traditional Irish recipe, substituting Japanese sweet potatoes for the regular tubers. I referenced the recipe from Ballymaloe Cookery School (courtesy of Darina Allen). Except for the sweet potatoes, the rest of the ingredients are faithful to the original... kale, milk, green onions, butter, and salt & pepper. I was semi-confused as to the difference between champ and colcannon, but it turns out that colcannon is essentialy champ plus kale/cabbage. Given that tidbit, why make champ if you can get it with kale and call it colcannon? Anyhow, this was okay... I liked the concept more than the actual dish. Here is something I learned from Wikipedia: Colcannon in Irish is cál ceannann, meaning "white-headed cabbage". Yay...