In a large mixing bowl, combine the black beans, black-eyed peas, corn, red bell pepper, green bell pepper, red onion, jalapeño, cherry tomatoes, and avocado.
In a separate small bowl, whisk together the olive oil, red wine vinegar, cumin, garlic powder, salt, black pepper, and lime juice.
Pour the dressing over the bean and vegetable mixture. Gently toss to combine, ensuring everything is evenly coated.
Cover the bowl with plastic wrap and refrigerate for at least 30 minutes to allow the flavors to meld.
Serve chilled or at room temperature with tortilla chips or as a side dish.