Bring black-eyed peas and water to a boil in a large saucepan , then lower the heat to simmer and mostly cover pan. Cook gently until tender. Check the water every so often to make sure there's enough. About 15 minutes into the cooking add the garlic. Cook peas for a total of 30-35 minutes or so. When they are just about tender stir in the salt, greens and leeks. Cover and continue to simmer for a few more minutes. Season to taste with black pepper and serve hot. Season with your favorite hot sauce.