3) Bird Cage + Bee boxes

Feeding the caged bird cooked monster meat or monster jerky (probably regular meat, too, but it seems like a waste) will yield eggs.
Feeding the caged bird any farm product will yield seeds. You get at least one seed of the food you gave the bird, and it's labeled, e.g. Dragon Fruit Seeds. The labeled seeds stack separately from other seeds.

Yada yada, 10 Improved farms that yield Dragon Fruit exclusively. I gain about 3 - 5 Dragon Fruit every 2 days, and keep just enough seeds to replant. Note that a single Dragon Fruit can be used to make a Dragon Pie, which fills more than day's worth of hunger (+75), AND, also, in addition to that, as if that's not enough, it also restores health like a champ (+40). It can be a single food solution for hunger and health, and is great for road trips. Same can be said for Bacon and Eggs, which is about 1/2 as effective at restoring hunger and health, but lasts about 50% longer from spoiling, so not a bad tradeoff.

The final step is to get some Bee Boxes and surround them with 6+ flowers each, sharing a large flower patch. With honey, I can make Taffy, which restores 15 sanity. Honey spoils so slowly that Taffy can be made as needed. Keep some cooked Green Caps on hand for emergency sanity ups.