My son just turned 3 years old and suddenly one day he said no to rice+fish+chicken and veg.
Only relies on kids cereal (whole lots of sugar), Plain toasted bread or plain bread (the gardenia ones), goldfish cracker, cornflakes without milk.

Anyone has been in this situation and managed to resolve this?

Wow all of you are super parents!

Thank you everyone. Finally i let him hungry by cutting the milk and he pulled me to the kitchen and showed me what he wants to eat. All sugary snacks and biscuits are not available anymore thus he asked for bread and sausages and ate them all.

I made a mistake by allowing him to eat Oreo la so salah in the beginning :-(