In a medium saucepan, combine rinsed quinoa and vegetable broth (or water). Bring to a boil over medium-high heat.
Once boiling, reduce heat to low, cover, and simmer for 15 minutes, or until quinoa is fluffy and liquid is absorbed. Remove from heat and let it sit covered for 5 minutes.
Fluff the quinoa with a fork and allow it to cool while you prepare the other ingredients.
In a large mixing bowl, combine the chickpeas, cherry tomatoes, cucumber, red onion, bell pepper, olives, and parsley. Toss gently to mix.
In a small bowl, whisk together olive oil, lemon juice, dried oregano, salt, and pepper.
Once the quinoa has cooled, add it to the bowl with the vegetable mixture. Pour the dressing over the salad and toss until everything is well combined.
If using, sprinkle crumbled feta cheese over the top and gently incorporate it into the salad.
Taste and adjust seasoning as necessary, adding more salt, pepper, or lemon juice if desired.
Notes
Serve chilled or at room temperature. Garnish with extra parsley and olives for presentation.