Foods that are easy, but a pain in the butt to make?

Not if you use dry noodles.

In my experience, there’s enough moisture in the sauce and other ingredients to cook the noodles without adding water.

I always make my own sauce (pureed tomatoes, diced tomatoes, and tomato paste—all seasoned, of course, and with EVOO), and I never precook the noodles.

I would argue that peels are more “OK” on fries than mashed potatoes, at least. Also easier to slice, IMHO. Some of the best ones have the peels on. But, I parboil them AND fry them twice when I make them. So it is pretty messy and time consuming but requires less equipment and mashing/blending prowess.

It does, but the texture is definitely different. I think 95% of people won’t give a damn, but it’s different.