You might want to look into a worm farm as your answer.
I'm considering doing my own as well. Picture some interlocking tubs, something like rubbermaid containers with holes drilled on the bottom for worms to move from one tub to the next. The stack would need to sit on yet another container that will accumulate the "worm juice". In this sump you would have a plastic ramp going back up to almost being flush with the bottom of the first tub. That way, worms that fall into the sump can climb up the ramp and enter the system again through the holes in the bottom of the first tub.
Then you just use this system as your garbage disposal putting everything in it from newspaper, yard clippings, coffee grounds, ect. Meat based items can cause a smell so its suggested to avoid it. As you fill one tub with garbage, you'll stack a new tub on top as you need it. The worms will leave tubs of pure worm castings as they work their way up through the system. So you'll be dumping the castings out of the bottom tub and place on top, ect.
I know normal worm farm worms are the small red variety, but i would imagine that it would work for nightcrawlers too. The smaller worms are probably better for total turn over of waste, but in your case you're doing it for the worms, not the castings and worm juice.
There are plenty of designs on the internet if you search for worm farms. You can buy them too.
