Unfortunately, half the plants mentioned don’t grow here – but that doesn’t make Jackie’s insight any less worthwhile:

“Year after year we start seeds, till the ground, plant, weed, harvest,
then tear it all out at the end of the season. It’s a lot of work, no
doubt. But there are some plants you can plant once that will produce a
lifetime of food after they are established. Old-timers knew the value
of these plants and added them to their new homesteads. Pioneers
carefully wrapped and tended baby fruit trees, grapevines, rhubarb, and
asparagus roots in their covered wagons. Maybe it’s time to lighten your
annual workload by adding some of these hardworking plants to your
garden. If you do, you’ll reap the rewards for many years.” (read more)

For Florida, I’d recommend Katuk instead of asparagus, then also plug cassava, sweet potatoes, Dioscorea species, moringa and other plants like that.