Combine the lettuce, black beans, corn, onion, tomatoes, avocado, and bell pepper in a large bowl. Set aside.In a small bowl combine all the ingredients for the dressing, whisk together until smooth. Add more lime juice for a thinner dressing if desired. Drizzle dressing over salad, gently toss to coat.Divide salad among 4 bowls, top each bowl with ½ cup of chopped chicken, ¼ cup crunchy tortilla strips, and a lime wedge.Enjoy!