I follow the no dig principle. Once the veg beds were made, which did involve double digging initially and soil sieving, I now put a layer of mulch or fretiliser on beds in the autumn, depending what is to be grown in the bed, this could be well rotted horse muck, leaf mould or a bed with nothing on. Worms have time to drag the compost into the soil and by spring, after snow, the beds are looking black and healthy. A fork over is sufficient to dig in anything left on the surface.
I've three veg beds and try to use a rotation system but space is limited and in practice this doesn't always go to plan as I stagger and repeat plant through the growing season.
I hoe regularly and don't let weeds take a hold in the beds, weeds tend to come up easy pezzie on a good bed with mulch or muck providing enough room is left between plants to hoe.
Carrots and parsnips don't do well in no dig soil as they need depth to grow. I've a portable raised bed for mouli which I like to grow, it's about a ft deep and is refilled each year with used compost from spud bags freshed up with new stuff and can be moved around the beds.