Season chicken with salt and pepper to taste and taco seasoning. Cook in a large skillet over medium heat 4-6 minutes on each side until cooked through.Top your chopped romaine with the corn, black beans, red bell peppers, onions, cheese, and avocado. Drizzle with fresh lime juice and sprinkle with chopped cilantro.Whisk together ranch dressing, chili powder, and cumin. Toss with salad or serve on the side for drizzling. Enjoy!