In a spacious mixing bowl, combine the chickpeas, cherry tomatoes, cucumber, red bell pepper, red onion, Kalamata olives, feta cheese (if using), and parsley. Gently mix with a spatula or large spoon.
In a separate small bowl, whisk together the olive oil, lemon juice, oregano, salt, and pepper until emulsified.
Drizzle the dressing over the chickpea mixture and toss until all ingredients are coated.
Taste and adjust seasoning with more salt, pepper, or lemon juice as desired.
Cover the bowl with plastic wrap or transfer to an airtight container and chill in the refrigerator for at least 30 minutes.
Serve chilled or at room temperature, garnished with additional parsley and feta if desired.
Notes
Serve chilled or at room temperature. Garnish with additional parsley and feta for presentation.