In a small bowl, whisk together the red wine vinegar, mustard, salt, and pepper. Slowly whisk in the olive oil; set aside.
In a large bowl, mix corn, soy beans, kidney beans, garbanzo beans, scallions, bell pepper, parley, and cilantro and/or basil. Gently toss in the dressing.
Nutrition Info Per Serving: Calories 280.1 Total Fat 8.9 g Saturated Fat 1.1 g Polyunsaturated Fat 1.5 g Monounsaturated Fat 5.3 g Cholesterol 0.0 mg Sodium 822.4 mg Potassium 212.8 mg Total Carbohydrate 38.6 g Dietary Fiber 9.5 g Sugars 4.6 g Protein 12.8 g