The disagreement started once we saw all those new Olive Garden commercials doing it. Her point is that nothing is going to taste great with the same thing used twice in a dish. I say differently. Like if you add a good Italian sauce or something and use rigatoni noddles.
Japanese/golden curry, massaman curry and others usually have potatoes in there. They are usually served with rice. But ive had them over noodles lots as well.
What about samosa? Potato stuffed into a bread and baked.