During WWII, the government urged urban citizens to plant Victory Gardens so that farmed produce could go to the troops. Home and community plots resulted in an estimated 10 million tons of harvested produce, equal to the commercial production of the time.
The cause of these food deserts must be addressed, but in the mean time, I think a return to the Victory Garden would be useful (assuming it doesn't work too well and end up tanking agro prices). You just need south or east facing windows, porches or roofs, and you can easily construct (or buy) window boxes and raised beds.
I suggest you do the math. My mother was a fanatical gardener and food preserver, so I know full well how much land it takes to grow enough produce to feed a family for a year from a season's frozen/canned produce. I personally did a lot of literal spade work (and harvest work) to make it happen.
A couple of window boxes will about cover 1/4 of your need for herbs(1). I am not sure how big mom's gardens (plural) were, but I would guess an acre or so all together.
Really, it isn't hard to do the math. There are a zillion books on gardening that address space planning starting from your desired yield estimate. It isn't difficult math -- my mom taught it to a herd of 4-H kids over the years, and as the 4-H garden judge at the county fair expected your notebook to include the computations.
So, I encourage you to grow a Victory Garden. Tell us how that works out for you. I guarantee that at least some of the food that you grow will be astoundingly good. Not everyone finds the process satisfying, though.
The ironic thing is that the farm country we are talking about in this thread is exactly where mom's gardens were, and gardens were common in the day. But not any more -- people would rather work at Walmart, and buy their canned corn there, than grow it and can it themselves. The rural economy has changed -- at least the farm country economy -- because it is rare to be able to make a living full-time farming any more.
(1) Never trust a sentence with the word "just" in it.
The "math" can be quite complex, because estimates range anywhere from 1/4 acre to feed a family of four to 1 acre to feed 1 person. It depends on how intensely the land is managed, climate zone, caloric requirements, etc. I pack my veggies in much closer rows than you're supposed to, but they do fine.
It's funny, I built one 12"x48" window box just for herbs and I barely use them! I have oregano, thyme, thai basil, mint, lavender, bee balm, parsely, cilantro, even green onions, and I kind of forget they're there. A shaker of dried herbs provence works for me most of the time.
The cause of these food deserts must be addressed, but in the mean time, I think a return to the Victory Garden would be useful (assuming it doesn't work too well and end up tanking agro prices). You just need south or east facing windows, porches or roofs, and you can easily construct (or buy) window boxes and raised beds.