When I first got into veggie gardening we talked about buying a tiller and working the land that way. Since permie school/hippie camp, I've come to know, love, and totally rely on building mulch beds. Remember how I do it? Start by suppressing grass and weed growth with cardboard.
Pile on layers of mulch in a variety of forms. We have a hill of decaying shredded woody material so I use that, grass clippings, leaves, chicken litter....whatever is free and handy.
Water well, add soil/finished compost in pockets throughout the deep mulch and plant directly into the soil.The next season that whole mound you made will be beautiful, dark, rich compost, full of worms and ready for growing.