Edamame Fresca

Name: Edamame Fresca
Ingredients: 1 small red onion, chopped; 2 (12 ounce) packages frozen shelled edamame (green soybeans), thawed; 2 (14 ounce) cans black beans, drained and rinsed; 1 (14 ounce) can garbanzo beans, drained and rinsed; 2 cups seasoned rice vinegar; 1 red bell pepper, chopped; 1 yellow bell pepper, chopped; 3 tablespoons chopped fresh Italian parsley; 3 tablespoons grated fresh ginger root; 2 tablespoons extra-virgin olive oil; salt and ground black pepper to taste