I've also seen children eagerly devour food they helped to cook even if was something didn't normally like.
We all know childhood obesity is a problem, but eating healthier foods can help with that. In our American society where both parents (or the only parent) must work at jobs away from home fewer families eat food made from scratch. Heating up something from the freezer saves valuable time and fast foods are called that for a good reason.
But we don't have to eat quickly every day. Cooking together is a good way to have family together time and growing even a few edible plants in flower pots helps kids learn.
Of course hot stoves and sharp knives are dangerous for little children, but even if someone else must do the chopping or put things on and off of the burner kids can do a lot to help prepare meals. Doing that may encourage them to eat healthy foods and can also increase their confidence.