[Christien]

My kids are younger than yours (18 months and almost 4) so I can't speak from experience, but I think Shaun and Hugh have it right. This is dinner, eat it or go hungry, complaint = punishment (time out, no tv, straight to bed, whatever you use) so either be quiet or say something positive, and either eat what's in front of you or go to bed hungry. If he's eating well the rest of the day, then I wouldn't worry about nutrition too much. That's how I would handle it, and I'm 99% certain my wife would agree.