In a large bowl, combine the drained chickpeas, diced avocado, crumbled feta cheese, thinly sliced red onion, chopped parsley, and chopped mint.

In a small bowl or jar, whisk together the olive oil, fresh lemon juice, minced garlic, and dried oregano. Season with salt and pepper to taste.

Pour the dressing over the salad ingredients. Gently toss until everything is well coated.

Serve immediately or chill for later.