My kids both do this. Like tonight I made burgers & veggies. They each took a few bites & that was it. My 16 month old just throws it if he doesn't want to eat it. They don't get a choice, if they don't eat it they don't eat. My 3 year old I can sometimes convince by telling him if he doesn't eat all his dinner, he won't get a bedtime snack (something he likes). Sometimes it works & he eats his dinner & sometimes it doesn't so he has nothing the rest of the night. I'm not concerned about them being hungry, they have to learn to eat what I give them.