You can eat at the Firehouse, where scores of bodybuilders have eaten time and time again. While they have a huge regular menu, it is the bodybuilder's part of the menu that people come for. Most don't actually eat in the Firehouse area, but in the patio, or right next to the patio, where at one time, that was the place to eat. Just this past Saturday, Quincy Taylor and his girl went to eat there for breakfast/lunch before going to the NPC Excalibur.
Right behind the Firehouse on the next street over his Max Muscle Venice, where Dave is usually lounging away. About a block away from their is Gold's of Venice, and it is worth just talking a look, for at one time, many of the bodybuilders trained here (Note - this isnt the original Gold's of Venice).
On weekends, it is fun to walk on the boardwalk, checking out Muscle Beach of Venice, and also - lots of entertaining and colorful stores around there.
But like they said, this is Los Angeles - there is lots to see and do here.