I don’t think i’ve ever had a sweet potato. Seeing them baked with sugar and marshmallow was never appealing to me. The recipe in the link for Lemon-Pepper Sweet Potato Crisp looks appealing for a regular potato.
I used to make a sweet potato souffle with raisins inside and the melted marshmallows on top. I really liked it, but a lot of people don’t. (The same people like sweet potato fries, though.)
I think it would be good with regular potatoes, too.