Combine the barley and water in a medium saucepan. Bring to a boil over medium heat and cook for 5 minutes. Reduce the heat to low and simmer for 30 minutes, then remove the pan from the heat. [Cooked barley is added to the sauted onions, etc. with the rest of the vegetables] Simmer everything for at least an hour. Add salt and black pepper to taste. Top with chopped cilantro just before serving. Serves 12 to 15. Note: This is even better the next day