On the subject of sausage, another German friend recommended Chozumeya Kamakura, a takeaway counter that does a brisk trade in hot-off-the-grill handmade sausages.
Konig is steps from Inokashira Park and also does other picnic-ready items such as grilled sausages and leberkase ("liver cheese") sandwiches; there is also a fridge full of German beers.
The menu at Zum Bierhof isn't as extensive or as fancy as at Kaiserhof, but you can get currywurst (and it's cheaper, at ¥1,029). Both Kaiserhof and Zum Bierhof serve beer from Hofbrauhaus, Munich's famous 400-year-old beer hall (though at a hefty mark-up).
Kaiserhof does a number of German classics, such as eisbein (pickled ham hock), spatzle (pasta-like dumplings) and a whole lot of wurst (sausages). The latter are served on hot cast-iron pans with sauerkraut, flavored -- appropriately -- with caraway seeds. There's apfelstrudel (apple strudel) ...
Notice: Event and location information is subject to change.