My children are reasonable eaters; at least, in the intersection between one who eats everything and one who is picky in that typical kid way ("I like this and this and this, but I do not like them TOUCHING"), I consider them to be fairly typical. And I cook whatever I feel like cooking and they can eat it or not. I don't prepare separate food for them; I don't fret if they refuse to eat something; and I give them multivitamins and call it a day.