In a small bowl or glass jar, whisk together the extra virgin olive oil, fresh lemon juice, red wine vinegar, minced garlic, dried oregano, Dijon mustard, sea salt, and black pepper until fully emulsified.
In a large mixing bowl, combine the drained and rinsed chickpeas, kidney beans, diced cucumber, red bell pepper, chopped red onion, kalamata olives, crumbled feta cheese, and fresh parsley.
Pour the prepared dressing over the salad ingredients and toss gently until everything is evenly coated.
Allow the salad to rest at room temperature for 10 to 15 minutes before serving so the flavors can properly meld. Store leftovers in an airtight container in the refrigerator for up to 4 days.