Grow what you'll eat, and keep it close to the house. Many people put the veg garden way out back like a poor relation. Keep it close to the house and it will get the attention it needs. And it's easier to PROTECT, if you get what I mean.
Perennials (live from year to year) are asparagus, artichokes, cane berries, blueberries, rhubarb, horseradish, small bushes like cranberries and lingonberries.
Fruit trees that are dwarf or semi-dwarf produce sooner than the large standard types, and they're easier to harvest.
Potatoes are easy. Lettuce family are quick. Figs root easily from cuttings if they grow where you live.
If you have chickens and a bit of land in the back corner, you might want to grow some grains. You can harvest some to hang on stalks for winter feed, and the chickens can harvest what's left if you just knock the stalks down. Chickens also like berries, and will harvest them themselves if they can reach them.
Many things will reseed fairly easily if you let the best ones go to seed (herbs, esp).
Sue