The sad thing with that is it's already EXORBITANTLY expensive to feed even a family of 4. Toss in "healthy" food and it's the damned price of a mortgage every month.
We try to eat healthy when/where we can. But its nearly economically impossible.
I'm not going to disagree with you that it is more expensive...I'm sure it is, but a few things I've noted as I spend a lot of time at local farmers markets:
1) Often times it is not much more expensive than the local grocery store for vegetables/fruits.
2) We eat way too much food in the USA at each meal. Maybe reducing portions and substituting what we eat for better food is the ideal.
So instead of getting processed cereal's, get a sack of rolled oats and eat oatmeal for breakfast (or several other hot cereals like wheatina, cream of wheat, etc) That is WAY cheaper than any cereal you're going to buy and keeps you VERY full till lunch.
You want a cheap snack...smear some natural peanut butter (smuckers sells this cheap) over some celery or apples from your local farmer's market (these are even cheap in the grocery store).
You want some protein, organic eggs are cheap.
You can make some really fantastic dishes with brown rice and good vegetables steamed/stir fried in olive oil, sea salt, and other spices.
Sweet potatoes are always cheap and are a great, tasty alternative to regular potatoes.
I could go on and on, but you can definitely eat healthy if you put your health in front of your taste buds. Yes, eating really "tasty" organic food like steaks and whatnot is expensive...but you can get buy eating healthy with smaller portions and just being very conscientious of what you buy.