Bratkartoffeln, spiegelei, guerke and a few schweinemedaillons is a nice one.
Boiled peeled and cooled potatoes.
Speck or pancetta.
Onion
Dill pickles
Eggs
Chopped onions
salt, pepper and sweet paprika powder to season.
Basically, boiled, peeled and cooled soapy potatoes ( if you use floury potatoes they will go to mush in the pan), slice the potatoes into about 1/4 nch slices.
You can use the pure fat speck and put that in the pan first and render it a bit to get some pig fat into the pan, then fry your potatoes in this, turning gently to brown and not break up the slices. Once browned then add the chopped onions and sweat a little, you want to add the onions towards the end so you do not burn and blacken them.
Season with salt pepper and a bit of sweet paprika. This is generally served with a fanned gherkin and some soft sunny side up eggs on top.
You can also put a few pork medaillons with it, but then you'd generally leave out the eggs, although you can put them both on there if you are so inclined.
This is very authentically German pub food.