Oh yeah...I slice up one apple and one small potato to cook along with the meal. I brown my pork loin first in some bacon grease, then put it in the oven and after about half hour I add the sauerkraut with the potato, apple and just let it all bake and brown and absorb all the flavors from everything. Nothing like mixing your golden brown sauerkraut with your buttery mashed potatoes. Mmmmmm, good. ha,ha.
Ohmygosh! You just reminded me of "Bubbles and Squeak" - rolled "balls" of mashed potatoes, with sauerkraut woven inside. I first ate them in Simpson's on the Strand - a wonderful restaurant in London. My mouth is watering and you've inspired me to attempt a copy ASAP!