We spotted Hayden Panetierre looking sexy in a black satin dress in Los Angeles last night.  The Heroes star was leaving Eva Longoria’s Beso restaurant and retrieving her car from the valet.

It’s been awhile since we’ve seen Hayden with her co-star and boyfriend Milo Ventimiglia, what’s up with that?  Are these two taking a break or just really good at keeping a low profile?