Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   1      pound         dried beans -- soaked overnight
   4      cups          cold water
   1      large         onion -- coarsely chopped
   1      can           (16 oz.) tomatoes
   2                    garlic cloves -- minced
   1      teaspoon      crushed red pepper or
   2      teaspoons     chili powder
   2      teaspoons     salt
     1/4  pound         salt pork or bacon -- chopped (optional)
   2      teaspoons     ground cumin

Preparation:

Put all ingredients into crock pot. Cook on high for 2 hours, then low for 8 hours. The beans can then be partially mashed for a low-fat alternative to refried beans.