Cook the pasta according to the package instructions.
Prepare the vegetables while the pasta cooks.
In a large mixing bowl, combine the cooled pasta, black beans, corn, bell peppers, cherry tomatoes, red onion, and avocado.
Add cilantro, ranch dressing, and lime juice to the bowl.
Season the salad with salt and pepper to taste.
Chill in the refrigerator for at least 30 minutes before serving.
Serve and enjoy your Cowboy Caviar Pasta Salad!