The Klammhaus at the Partnach is a cozy family-run spot near the Partnach Gorge. They serve up traditional Bavarian dishes and you can also try fondue or the Tatar Hat grill where you grill your own meat and vegetables at the table.
The Klammhaus can help you organize torchlit tours through the Partnach Gorge in winter time.
Alternatively, hike the gorge in the morning and then stop here for a nice breakfast when you're finished.