Jason Biggs OLDSKOOL042507_mar.jpg

Jason Biggs married actress Jenny Mollen a week ago -- totally under the radar -- at LA City Hall!

So, it's slightly less glamourous than Mariah and Nick's elopement in the Bahamas, and slightly less publicized, but still the real deal! Think they served apple pie at the reception?!

The couple met on the set of My Best Friend's Girl and have been dating for about nine months. Reports say they're in Hawaii honeymooning now ...