In a large mixing bowl, combine black beans, chickpeas, kidney beans, cherry tomatoes, cucumber, red onion, and parsley. Mix gently with a spatula.

In a small bowl or jar, whisk together olive oil, lemon juice, vinegar, honey or maple syrup, and season with salt and pepper until emulsified.

Pour the dressing over the salad mixture and toss everything gently to coat.

Taste and adjust seasoning with more salt, pepper, or lemon if needed.

Let the salad chill in the refrigerator for 30 minutes before serving.

Serve chilled, enjoying the vibrant flavors of this Healthy Bean Salad.