Are you looking to do it with just stuff like kitchen scraps or large volumes?
When I lived in town, I made a ring with some welded wire fence and I would dump leaves, grass clippings, kitchen scraps and anything else organic I had. It would slowly break down all year and in the spring I would empty it out and spread it on my garden for fertilizer. I would even throw in carcasses of wild turkeys, small game, etc., and that would all break down into great fertilizer. You just generally want a decent mix of green and brown stuff with varying carbon amounts to make a good mix. If you have all leaves it will break down really slowly and if you have all animal carcasses or growing green stuff it will dissolve into a smelly pile of goo. But if you have a mix of both together it turns into good stuff.
I generally do the same thing with pig manure and bedding and garden and crop residue, but on a larger scale with a tractor bucket.