He does not like meat and veggies!

I guess most parents go through certain periods of their children's growing up stages, we are going thru the "Picky food phase". My son had no problems with foods when he was two years old, in fact he would eat anything off the plate but this changed when he turned three, since then it has been hard to get him to eat anything else. I am not saying that he won't eat but the usual foods that kids eat like, burgers and pasta are things he doesn't eat. I am hoping that this is just a phase and when he goes to school and sees other kids eating these foods then he will be able to adjust. Here is a picture of his reaction when he does not like the food, he did not eat it and he fell asleep after a couple of minutes.