Combine Vegetables and Herbs: In a large serving bowl, combine the diced cucumber, red bell pepper, finely chopped red onion, and fresh mint.
Prepare the Vinaigrette: In a small jar with a tight-fitting lid, add the extra-virgin olive oil, fresh lemon juice, black pepper, and ground sumac. Secure the lid and shake vigorously for 20 seconds until the dressing is creamy and well combined.
Mix the Salad: Add the rinsed and drained chickpeas to the bowl with the vegetables. Pour the vinaigrette over the top and toss gently until everything is evenly coated.
Add Feta and Serve: Gently fold in the crumbled feta cheese. Serve immediately for the best flavor and texture.
Notes
Storage: This salad is best enjoyed the day it is made. Leftovers can be stored in an airtight container in the refrigerator for up to 2 days.
Ingredient Tip: If you cannot find sumac, you can substitute it with 1 teaspoon of lemon zest to enhance the bright, citrus flavor.
Make-Ahead: For the best texture, chop the vegetables and prepare the dressing in advance, storing them in separate containers in the refrigerator. Combine everything just before serving.