Toddler food

That is tough, we are having same problems. I noticed that at breakfast time, when my 23 months old kid is hungry, se will eat anything, so I try to give her protein rich food then. When she throwns a tantrum over a snack, we promise to give it to her after lunch/dinner and we deliver on our promise. She has now learned that if she does what we ask her, she will get what she wants. After dinner we give her option of the snack she wanted or some healthy fruits. She often goes for the fruit, or even both :-)