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.
I would like to introduce you to Guiso de Fideos:
A very traditional Argentinian food made with potatoes, noodles and other ingredients.
I would agree that just potatoes and noodles is way too much carb if that’s the only food you’re eating, but if you add other things or have it as a side dish it could work. Gnocchi are potato+flour and they’re not more starchy than other pasta, it’s all about the proportions with everything else.