Our perfect, but perfectly simple, corned beef was ordered by 5,459 customers in 2005 and not all of them Irish. Because no fat is added in cooking and the broth is its own sauce, this could be construed as a "light" dish.
As to the recipe: I urge you to use Canadian Bacon. You can use traditional American bacon, but you'll end up with a saltier dish. The Canadian Bacon makes the pie sweeter than one could imagine.