It depends on the dish. In the case of a semi-liquid dish like a soup or stew, you can add a couple of peeled and sliced potatoes to soak up the salt: cook them until tender, then discard before serving. Alternatively, you may add a couple of spoonfuls of rice or pasta pieces, but these will have to stay in the dish after cooking. Other thick, bland foods, such as cream or yogurt, can be added to help reduce the saltiness. The damage is harder to counteract in dishes which have a thicker consistency. The only solution is to cook a second batch of half the quantity of the recipe without salt, and then to combine it with the oversalted lot.
** Asian Recipes