GardenersCardiff answers:

Mixed situation. You certainly cannot grow ALL the vegetables you need w/o a lot of space and work; possibly a big water bill too if you live in a drought area.

Fruits are dubious unless you have orchards and the manpower (and pollinators) to manage them. The plants tend to be very susceptible to disease and pests and have other demands like freeze hours.

Best thing is to identify what WILL grow well in your area w/minimal watering or soil adjustment (example: I live somewhere that has very alkaline soil and water, which makes most crops very difficult.) per the season and using those items heavily instead of the supermarket’s ‘buffet’ produce selection. Where I live, I’m very limited, but still manage to produce salad greens, hot peppers, melons, and cucumbers with enough to share with friends. I also make my own compost so I don’t have to buy it for fortifying soil and I collect rainwater when I can so I don’t run my water bill up.