I had just finished surfing potato recipes from the Chat Archives when I saw your post, went back and came up with this. Doesn't have a recipe name on it, but sure sounds at least similar to what you are seeking.Roz/La. (10:06:46) : 6 large potatoes, peeled
1 stick butter or margarine- sliced
5 strips bacon
1/2 cup chopped green onion
2 cups grated sharp cheese
1 cup milk
1 cup sour cream
seasoning to suit taste (I use Tony Chaceres)

Boil potatoes, chill for several hours or overnight. Grate finely or use food processor. Place in 9x13 buttered casserole, top with butter.
Fry bacon, drain and crumble, set aside
Using some of the bacon drippings, sauté onions until transparent. Add cheese and seasoning, mix thoroughly, blend in milk, sour cream, and bacon. Pour mixture over potatoes. Bake at 350 for 30 minutes.

This is obviously not low fat, but soooo good. Save for special occasions!