I like the idea that was suggested about putting the food at the table and everyone helps themselves.  Children will eventually eat if they are hugry enough.  This may sound cruel but if they choose not to eat one night don't make dinner time a battle field I am sure the next night or the night after they will eat even if it is something small.  You don't want your child to associate negative experiences with eating otherwise you may just create an ongoing battle between you and your son.  Eating should be fun!

If you child doesn;t like something then that's cool I hate peas and will never eat them, why should I if I don't like the taste?  Also I remeber bad experiences with them at the dinner table where mum and dad used to hide them in my mash potatoes.  Now I am 27 and have never eaten peas. 

I believe that you should keep offering a food but not forcing them to eat it.  If you offer it enough times they might just be curious to find out what it tastes like.  Also lead by example, eat what you expect your child to eat.  I don't believe in making a seperate meal for your child.  There are also creative ways to make dishes more healthy such as in mince sauce add carrot or another vegetable and kids don't even know what they are eating. 

In my opinion I don't agree with offering bribes as a method of getting a child to eat as I believe this is not teaching them very good eating habits and could lead to them always wanting to be bribed.  For example, he could one day be out at a friends house and expects the parents to offer a bribe because that is what is done at home.  Also could lead to child obesity if you are always offering sweets as a reward. 

Another thing you could do is during the day have a table set up at his height (presuming it is a todder) and have a variety of healthy snacks ie celery, cucumber, carrot sticks with a healthy dip, cut up pieces of fruit and this way he can eat when he is actually hungry and not have someone pressuring him to eat.

Good luck!