01 - In a large mixing bowl, combine the kidney beans, red onion, red bell pepper, cucumber, cherry tomatoes, and parsley.
02 - In a small bowl, whisk together olive oil, red wine vinegar, Dijon mustard, garlic, salt, and black pepper until emulsified.
03 - Pour the dressing over the salad ingredients and toss gently to combine.
04 - Adjust seasoning to taste and chill for at least 30 minutes before serving for best flavor.