A bowl of black beans with some rice, bread, or greens is a meal in itself, but it's also a side dish to round out about any meal. The trick, if you could call it that, is to stick to dried beans that can slowly release their starch into the cooking liquid, and use a balance of aromatics to enhance their flavor.
'latin' on Serious Eats
Deep fried pork rinds get simmered in a tomatillo and tomato-based sauce.
The chipotle and curry powder in the filling give the little pockets a good kick.