How to manage fussy eating

You are looking after a little girl, Jessica, who is refusing to eat her dinner saying she is full. She has only eaten half of her dinner and you are worried that she will be hungry during the night. What do you do?

As children move out of the toddler stage they often use food as a way of asserting their independence. What strategy would be least effective in supporting a 4 year old child to feel more independent?

Johnny has come back from playing outside and is asking for a snack. You tell him that dinner will be ready in 30 minutes, but he is already half way through drinking a pint on milk and preparing a sandwich. At dinner he only eats a little bit saying he is full. What do you do?