Peoples idea of food these days is all screwed up. Too many people worried about too much of this and not enough that.
We cook some from scratch meals, some quick out of the freezer meals, or a jar of something and some smaller beans on toast, jacket potato meals. Some meals are meat and veg, salads,some are pasta based and some occasionally (although as a family we aren't that fussed) include chips.
As snacks my dc eat fruit, yoghurts, biscuits, crisps and dum dum duuum, chocolate although none of these including the fruit are unlimited. Usually something fruit or yoghurt in a morning, same in afternoon or a biscuit and they choose after tea if they have finished all their meal.
None of us are overweight. In fact, my 2 elder dc are probably under, they are all healthy and teeth are perfect.
Everything in moderation. The children who have never had a lot of sugar, choc etc are usually the ones that gorge on it once they can do what they like (aka teenager).