Rinse and drain the chickpeas well, then pat them dry with a towel.
Chop the tomatoes, cucumber, bell pepper, onion, and parsley. Add them to a large bowl with the olives.
Whisk together olive oil, lemon juice, Dijon, honey, garlic, oregano, salt, and pepper until emulsified.
Add chickpeas to the bowl and pour in the dressing. Toss until everything is coated.
Fold in the feta gently. Taste and adjust salt, lemon, or pepper as needed.
Chill for 10 minutes for flavors to meld, or serve right away.