Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   1      can           black beans
     3/4  cup           tomato
   1                    serrano chile
     1/2  cup           red bell pepper
     1/4  cup           red onion
   2      tablespoons   white wine vinegar
   1      tablespoon    vegetable oil
     1/4  teaspoon      salt

Preparation:

* Black beans should be canned and they should be rinsed and drained. ** Serrano chile should be seeded and finely chopped.