What are you supposed to see in any restaurant? The menu, plates, glasses, and... fork and knife, of course! If people expect to see these things in the restaurants why not to use the images of them when designing a website for a restaurant?
Looks like a good idea! Here are a couple of examples of how it can be done:
TODO PINTXOS restaurant - the designer put fork and knife just like you expect it to see in the restaurant.

Jedzonko na Stysia - another restaurant showing this idea in action. Actually I like this design most, maybe because if the dark background and red content area. Such colors combination always looks attractive!









