In large bowl toss together beans, chickpeas, onion, celery, cucumber, parsley, mint, dill, and garlic.
In small bowl whisk together olive oil, lemon juice, garlic, salt, and red pepper flakes. Drizzle over salad and toss well to combine.
Place in fridge and allow to sit for 20-30 minutes for flavors to combine. Taste and add salt or pepper if needed just before serving.
