Strictly from a nutritional perspective, fruits and green vegetables are better than grains, beans, and tubers. But the cost of farming them is [currently] hig

Strictly from a nutritional perspective, fruits and green vegetables are better than grains, beans, and tubers. But the cost of farming them is [currently] higher. It is likely that automated farms capable of growing anything would produce the highest-value produce first, and the nutritional value of cheaper foods would increase. Your fast food burger would replace iceberg with leaf lettuce, then the pale flavorless commodity tomatoes with deep red juicy ones. Then maybe the bun will be made with some cauliflower meal in it. The price you pay for the burger will mainly be for the labor, facilities, and transportation, and the mean quality of ingredients will rise, rather than the price going down. If you make meals at home, you will likely have more options for pre-cut foods, and more distributor-packaged, fixed-weight bags with recognizable brand names on them. Rather than one whole head of cauliflower at a time from who-knows-where, you will get a 2# bag of pre-cut fork-sized cauliflower florets in a microwave-ready steamer bag from Edible Head Farms, with full nutrition panel, a recipe, and a heartwarming story about their plucky farming robots on the back. The market already knows you are willing to spend $X on cauliflower, and captures that same amount with lower production costs and a heap of value-adds like pre-processing, brand, convenience, and maybe flavor, if there's still room. The grocery store is already operating on 1% margins, and can't afford to take a hit on giving the same amount of shelf space to cheaper cauliflower. Your lettuce will come in stacked, equal-sized leaves for sandwiches, and in bagged, fork-sized bites for salads.