Add quinoa and stock to a pan and place over low heat. Simmer gently, stirring regularly, until the quinoa is soft and the germ has detached. Add more water as needed to prevent it drying up
Put oil in a pan and add sliced onion, broccoli florets, and garlic. Cook over very low heat for 5 minutes until the broccoli is just becoming tender but still has some bite to it
Add the chickpeas and cook another 5 minutes
When both the quinoa and vegetables are ready, combine them in a large bowl along with the pine nuts, olive oil, lemon juice, fresh parsley, and plenty of black pepper. Serve warm or cold