In honor of Michel Richard, who left California I understand because diners ignored his menu and instead asked for healthy blah food like grilled fish on a bed of lettuce, my first stop in California was for a nice burger. Father's Office definitely delivered, this is a serious burger. According to wikipedia and consistent with my own memory, it is the "Office Burger, a patty of fine dry-aged beef topped with caramelized onions, Gruyère and Maytag cheeses, applewood-smoked bacon compote and arugula served on a soft roll." I also got a side of sweet potato fries, which represented quite well.
It was fairly brisk on a Tuesday evening. The place is a bit dark (that's why I couldn't identify everything on the burger) but definitely worth the stop in Santa Monica.