I see two sides to Sauerkraut. Before refigeration or reliable canning, Sauerkraut was a reliable, cheap and easy (well comparetivly, though still a lot of work) way of converting a big harvest of white cabbage into a food that would keep all winter. Sauerkraut also has a very high amount of Vitamin C (unless you warm it up for hours by putting it on a stove), which was an important bonus in the time before oranges from other countries were available all year round in stores.
For these reasons, it has come back in style among a certain segment of the organic/esoteric food crowd who prefer local-grown Vitamin-C food instead of transporting oranges and kiwis around half the world.
But if it isn’t well done (doesn’t that hold true for a lot of foods, though? There’s a world of difference between a home-made fried beef and a hamburger from McD.), it tastes … well, boring.
When I stayed on an organic farm about 10 years ago, they made their own Sauerkraut in autumn, and we ate it during winter, and there I learned that’s there a salad made from cold, unheated Sauerkraut. Sadly, I don’t have a recipe (since I don’t cook), but maybe you can find one on the net or in a good book.
Sounds simply like Bratkartoffeln. To make them well is a high art: you need the right kind of potatoes (starchy, not flowery, so they don’t soak up too much fat) and the right pan - a group of people (who incidentally also sell them) swear on cast-iron or forge-iron pans, because of the heat transfer properties of real iron as opposed as to other combinations. Then you need less fat. There’s also the trick to cook them first - usually Bratkartoffeln are made from left-over peeled potatoes - then they don’t soak up too much fat, either.
More special german potatoe recipes:
Reiberdatschi (Bavarian)/ Kartoffelplätzchen/ Kartoffelpuffer: these are regional names and variants for grated peeled potaotes - one variant with cooked (again, left-overs), one with raw - , mixing an egg or two, some bread crumbs/flour for binding (if necessary) plus spices. Form into patties and fry in a pan.
Eat them either sweet, with apple sauce (and cinnamon and sugar) or - with Sauerkraut.
There’s also “Heaven and Earth” - mashed potatoes and applesauce. So called because potatoes are also known as “Erdäpfel” = Earth apples in some regions of Germany.
Another quick way for raw potatoes is a Gratin (although that’s French in origin, to be exact). Slice potatoes, put one layer of slices into fire-proof ceramic pan, pour Bechamel sauce, add another layer of slices, etc. The last layer is potatoe slices, topped with cheese (which melts in the oven).
Mmmh, now I’ve become hungry, too.

I need a transporter beam.