IME, this depends more on the parent than the kid. Sam's happy eating macaroni and cheese, scrambled eggs, sandwiches, cereal and such for weeks on end. I tend to go a little insane if I have to eat the same thing for too long.

It also depends on where they live, but, if they buy a lot of things in bulk, don't shy away from generic brands and stay away from a lot of snack/instant foods, they could probably be well fed for less than seventy-five dollars a week. Especially if there's a good farmers market and/or food co-op around. (The co-ops are *great* for bulk things, as is Whole Foods, which really surprised me, 'cause they're definitely not known as a cheap store.)

Gessi who, ironically, has to go feed her three year old now. *Grin*