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.
As someone else said: Pierogi!
Gnocchi is pasta made with potatoes.
Not pasta but I’ve put potatoes and rosemary and swiss cheese on a pizza and it was amazing.
Little cubes of sweet potato in cold pasta salad is good too.
I think you are more right, but I would not, like, mix spaghetti into mashed potatoes.