I started red worm composting five years ago, using old recycling bins. Two bins were used for each, to provide a double layer against winter. Holes were drilled into the inner bin for air, and bottoms for drainage. A city program provided a thousand red worms to get started, and top covers. The compost was started from wetted strips of torn newspaper. Note that newspaper tears straight in one direction, but not crosswise.
All my vegetable scraps are saved in old, covered 2 qt plastic containers, and then emptied into the bins when full, being sure to cover the scraps with the compost. With the McDougall diet, there are volumes of scraps. The red worms multiply rapidly, having a very short life span. The vegetables break down quickly, and the worms consume the scraps in tightly-packed masses of red worms. Last year, a third bin was started, using just a single large bin -- the winter cold has not been a problem. This bin had only drainage holes drilled into the bottom.
Between the three bins, all vegetable scraps are consumed rapidly by the red worms. Small leaves make good additions to the compost, particularly fallen Japanese maple leaves which are saved in a couple garbage cans for the worms and for mulch. The compost can be periodically scooped out for plant food, worms and all. See the results below: