In a large mixing bowl, combine 2 (15.5-ounce) cans chickpeas, rinsed and drained, 1 cup chopped flat-leaf parsley, 1 cup English cucumber (quartered and sliced), 2 cups quartered grape tomatoes, and ? cup diced bell pepper.
In a small bowl, whisk together 3 tablespoons olive oil, 2 tablespoons lemon juice, zest of 1 lemon, 2 cloves minced garlic, ¼ teaspoon cumin, ½ teaspoon kosher salt, and ½ teaspoon fresh ground black pepper until well combined.
Pour the dressing over the chickpea mixture.
Toss everything together until the vegetables and chickpeas are evenly coated.