Leapstar, he's still little - I wouldn't stress too much about eating before school yet. By the time he is going to kinder / school, you'll be able to talk to him about why it's important that he gets his tummy full.
My two always take a while to warm up to breakfast in the morning, especially my 22 month old son. He often won't eat until 2 - 3 hours after waking and right now, I go with that. If we are going out and about and he hasn't eaten I take a sqeezie yoghurt and a banana - bananas are brilliant for filling little tummies on the go.
Cate was never hugely into breakfast but now that she does kinder and swimming, she knows how starving she gets if she refuses breakfast...it has made a HUGE difference to her morning eating habits. As long as she is given a good half an hour to wake up properly and settle into the day, she will go at breakfast with gusto. And I can tell her to 'hurry up' if we need to be out the door and she will literally start shoving the food in...it's very different when you're at kinder and you can only eat at snack time, as opposed to being home with mum when food is available at any time