* Replace the ham with 1 lb. meaty bacon. Cut the bacon into bite-size bits. (You can discard big hunks of fat if you wish, but do include some.) Add the bacon after the beans have soaked up a fair bit of liquid.
* Use smoked black pepper if you have it; otherwise plain black pepper is fine.
* Add about 1/4 teaspoon chipotle powder. If you don't have that, you could chop a chipotle pepper.
This is a good way to use up a lot of bacon quickly, if you have some extra.