Unless they are all anorexic then they must be eating something.  It's not that they don't like to eat since eating is a part of life.  The most likely culprit is that they are probably filling up on snacks or other food.  This may be happening at home or if they are old enough then someplace else.  It's possible, but unlikely, that your cooking is just so horrible they have to eat someplace else. But I guarantee they are willingly eating something.

Dont repeat the same items  as they refuse it. even my child likes to eat varieties of food .  try for that. if your child is more than 5yrs old ask them what they would like to have  and try to fulfill their needs.

Hi Mom of Five,
 
You might check out the numerous answers and suggestions that another JustAsk member got to a similar question:
 
http://www.education.com/question/pick-eater/
 
There are actually quite a few Q&A in this topic area, which you can review through this link (produced by doing a search for "eating" on the Find questions homepage):
http://www.education.com/answers/search/?searchTerms=eating
 
In raising our daughter, we found that she would try new food items as she saw her cousins and friends try them. We also occasionally had to create consequences when she wouldn't sit down and eat her dinner with our family, such as no video watching afterward. We also made a big deal of it when she would eat healthy -- heaping lots of praise on her.
 
I'm including a link below to a Healthy Eating Strategies info center on Education.com you may find helpful. Good luck!