What kind of beans? I've always liked taking plain pork n beans, adding bacon, some green onions, and some BBQ sauce cooked nice and slow.
Or, there are some good 15 bean soup packages in the stores around here, to which you add a can of diced tomatoes, the juice of a lime (or lemon), diced ham and about a clove of garlic. They can be cooked in a slow cooker and they are awesome.
http://en.tackfilm.se/?id=1265251238470RA18 I didn't create this one but I got a big laugh. Takes a while to download, but after you're done watching you can upload any picture you want to replace the one they used. Good fun.