Season the chicken. In a medium bowl, toss the chicken strips with 1 tbsp of olive oil and the taco seasoning until fully coated.
Cook the chicken. Heat the remaining 1 tbsp of olive oil in a large skillet over medium-high heat. Add chicken in a single layer. Cook for 3-4 minutes per side until charred and cooked through. Remove from heat.
Assemble the base. In a large serving bowl, lay down the chopped Romaine lettuce. Arrange the black beans, corn, cherry tomatoes, and red onion over the top. Sprinkle with shredded cheese.
Add chicken and dress. Lay the warm cooked chicken over the salad. Drizzle the Ranch dressing evenly over the bowl.
Finish and serve. Top with tortilla strips just before serving to maintain their crunch. Serve immediately with fresh lime wedges.