That's a great idea.. I have always hated the fact that eating healthy can cost more. Leaner cuts of meat are the most expensive, real stone-ground whole wheat anything costs more, etc.
I once was on a Dr. supervised diet, and it really increased the grocery bill. Then my family hit a massive financial rough spot, so that I was feeding 4 people on $20 - $30/ week. This lasted a month or so. We lived on rice and ramen noodles and chicken leg quarters (one per meal). We made it, but we all gained weight.
When I went back to the Dr. and had to explain why I'd gained instead of lost, and told her it was because of finances, she looked at me like I was crazy.
But like I said, we made it through.. That was several years ago!
Lori