red beans

I used to make these in a slow cooker. I didn't write the recipe that way because I don't have one anymore, but it will still work.http://food52.com/recipes/2383_cajun_red_beans_and_rice_au_vin

You'd know best what flavorings are safe -- I'd suggest herbs, or chiles (dried or fresh), if possible. A splash of vinegar or citrus at the end can be nice.

Here's a very simple red bean slow cooker recipe for inspiration (it'll take less time since you've presoaked, so start tasting halfway through): http://www.myrecipes.com/recipe/slow-cooker-red-beans-rice-10000000443497/

How about doing it Southern style with a ham hock and a few bay leaves? Throw in some dried herbs like thyme or sage - maybe a few chopped carrots and celery -Cover with water about an inch over the beans and cook on low for about 6-8 hours or until the beans are soft. Season with salt and pepper, remove the ham hock, and serve over rice with a green veggie side - maybe a dollop of yoghurt or sour cream on top...you can adapt almost any recipe you find online by just taking out the onions and garlic. It will still taste good.