Step 1

Cook the spaetzle al dente, about 15 minutes in salted water.

Step 2

Add a layer of cooked spaetzle to a casserole dish. Top with a layer of sauerkraut, then a layer of cheese. Season top with salt and pepper.

Step 3

Repeat for a second layer, and a third if needed.

Step 4

Heat the olive oil in a pan and brown the sliced onion. Place the browned onions on top of the casserole.

Step 5

Bake at 450 just till the cheese is melted and the sauerkraut is warmed, about 20 minutes.

Step 6

For a juicier casserole, add some or all of the reserved sauerkraut juice to the casserole before baking.