In fairness:

1) I think photographing "fake" or dressed-up versions of food is a reasonable practice. Until a law were passed saying ALL restaraunts had to photograph exactly what they served, nobody could be competative by doing so. I've you've ever seen commercials for local restaraunts, you know how gross real food looks on camera.

2) I would rather eat a sloppy-looking burger (as long as it's reasonably assembled for edibility) than stand around all day waiting for them to craft a perfectly-arranged work of art.

That being said, restaraunts should reveal the actual size of these burgers.