Traditional refried beans were leftover beans that were mashed and cooked again -- hence refried. Smoked ham hock is available at most grocery store meat counters and butcher shops. Once cooked, it can be used to add flavor to soups and stocks.
This is one of the most economical meals to serve for a tableful of guys, and it can be further enhanced with a topping of your sausage of choice, split lengthwise and grilled. Serve over the white rice with a bottle of hot sauce within reach. From the book "Mad Hungry," by Lucinda Scala Quinn (Artisan Books).