Just a side note to Wendy Z's Twice Baked Potatoes recipe.
First of all, be sure that you are cutting the potatoes in half lengthwise, not crosswise.
Second, I have never heard of adding Italian Dressing to twice baked potatoes, but it sounds interesting. Some other additions to them that are popular around here are roasted garlic, chives, cheese (I don't remember if Wendy Z's recipe had cheese), milk or cream if your potatoes aren't as creamy as you would like, and butter.