Well, my elementary school kids get them sometimes, but they probably get french fries equally often.
I once read the cheapest diet available that would keep you healthy was whole wheat flour, lard, cabbage and carrots.
Curious about the garden stuff. It may be because our garden is so small-scale, but if you calculate in the cost of things like building raised beds, buying garden tools, replacing net supports, etc., we pay a pretty decent price for what we get out of our garden. It’s a hobby, and it grows delicious food, so I’m not giving it up, but I’m not sure that we save much money on it.
Yeah, the savings on fresh produce from Grand Mart are insane. One thing that seems too good to be true but actually is true. Another is all the little Indian or Afghan groceries where saffron costs a small fraction of its price in conventional American stores, and is better quality to boot. Saffron! 
And, of course, the cost of your labor. $4 a pound for heirloom tomatoes at the farmer’s market might be a lot, but it’s still cheaper than the time I’d spend weeding.
I read right here on the SD that the Irish were perfectly healthy on a diet of milk, potatoes, and oatmeal.
Peanut butter on whole wheat bread, with an orange and a glass of milk is supposed to be a nutritionally complete meal.
Anyone have suggestions for beanless cheap meals? I can’t eat beans* at all.
Any ideas?
*The “no-fart” stuff doesn’t solve the problems they give me.
My garden isn’t fancy. I got some dead sod for free and used that as my growing medium. I’ve got chives and strawberries galore out of it. Potatoes and other roots didn’t do so well so I planted them elsewhere in my base clay soil. A friend gives me leftovers and unwell starter plants from her farm market business so what I get to grow shifts from year to year. This year, for instance, I am big into lemongrass and basil. Last year, there was no lemongrass.