When I was a kid, my dad had a veggie garden in the back yard. It was about 40' square, and in the farthest back part of the property, right next to the alleyway that wasn't there.
He dug it up by hand, and added a couple trailerfull loads of sludge from the city wastewater treatment plant. I don't know that he ever spent enough time in the garden after that because what I mostly remember was tall weeds.
After I got married I put in a garden at our first rental house. It was a hybrid "square foot" Jervens garden with raised "beds" although they were all interconnected. I had some pretty good results from that garden, but had to leave it after the second year.
My second garden was four raised beds. Tomatoes and corn and zucchini and I don't remember what else. Only one year.
Garden three was more raised beds. I had prepped them in the fall, and planted winter rye as a cover crop until spring. That got tilled in, and I planted a bunch of tomatoes. Then I had to work overtime for the next four months. The garden had a lot of weeds, but I managed to harvest about two bushels of tomatoes. Lesson learned: if you don't have time for it, don't do it!
So this year I will be putting in ONE raised bed, about 4' x 10'. I've found a source for compost at $15 a yardÂ³. That, added to my reasonably black dirt in the yard (that is on top of orange clay) should be decent for a start. That will be for summer produce. I may put in a second bed for overwintering crops, covered by a row hoop. There used to be five mouths to feed, but now there are only two. And I don't feel obligated to feed the whole neighborhood. And yes, I am in-city so there's not a lot of acreage to work with.
Where the garden is going to go: