Does the kid drink their appetite away? I have a little girl who has to eat her meal before any drinks are served to her.

Stickers also work wonders. you can work it up. 3 bites gets a sticker, two days later four bites get a sticker, so on and so forth.

It's not healthy for kids not to be eating. But I definitely would not serve this kid anything different.

Can you work two favorite dishes into your menu each week? Then you can tell them that they only get that course if they eat their veggies or what not. Or if you are uncomfortable with that then at least they eat twice a week. =)