Only 3 ingredients sounds simple and "untasty" but trust me, its delish!!! The juices and flavors from the Kielbasa seep down and flavor the whole dish. My Son LOVES this and anyone who has tried it asks for the recipe. I hope you will try it too!
Preheat oven to 325. Thinly slice the raw potatoes (I leave the skin on) and spread on the bottom of a 13x9 pan, lightly season with salt and pepper to taste. Then, thinly slice the onion, layer on top of the potatoes, salt and pepper on these as well. Lastly, slice the kielbasa and layer that on top (I don't salt again, kielbasa is salty enough for me). Bake for about 30 minutes or until you stick a knife in the center and the potatoes are soft. You may want to check during and cover if kielbasa is browning too much. Serve hot/warm with a nice salad and some nice crusty bread!!
This recipe is SO easy and versatile, you can use any size pan, just adjust the recipe to fit your pan. I just make sure I have pretty even layers of each ingredient. Or if your a potato lover, add more, or more kielbasa, its really just to your personal taste.