Do you ever have trouble finishing a jar of salsa? It doesn't often happen to me, but this is an excellent use when it has just started to taste a bit fizzy and won't last more than a couple days.

Rinse beans and dump in a pot. Add salsa remnants. Put some warm water in the salsa jar and shake to get any last tasty bits then pour into pot.

Cook.

Taste. Fiddle with spices (cumin is good, also oregano).

When desired consistency, nom.