Some places actually have full sized portions. This is the main at Bocce, which was not only full sized but also delicious (I'd taken a couple bites before taking the picture). It's a giant beef shortrib. The person I was eating with didn't even finish it.
In contrast, here are the Black Pig courses.
http://imgur.com/dFpDg3p&8L7oWgH&3GkTkcL&3TzrHEn
The dessert was actually a good portion, the main was about a half portion, the salad was like four tomatoes and some cheese.