Andechs and the Ammersee...
Another nice place close to Munich is Andechs Monastery. The have some great beers and the food is really good. This place can be crowded when the weather is nice... but its a nice place to visit. The roads in this area are quite nice to drive too.
Andechs Monastery (Kloster)
Bergstraße 2
82346 Andechs
Germany
http://andechs.de/no_cache/en/
Tegernsee...
another nice area to visit... and very close to Munich.
Tegernsee...
Weisswurst und Brezel: Bayerische frühstück
Another lake side place to visit with good food is: Bräustüberl Tegernsee
Bräustüberl Tegernsee
Schloßpl. 1
83684 Tegernsee
Deutschland