• Step 1: In a large bowl, combine the chopped lettuce, cherry tomatoes, diced cucumber, sliced black olives, and diced red onion.
• Step 2: In a separate bowl, mix together the sour cream, mayonnaise, and taco seasoning until well blended.
• Step 3: Add the corn chips and shredded cheddar cheese to the vegetable mixture, then pour the creamy dressing over the top. Gently toss everything together until the chips and vegetables are evenly coated.
• Step 4: Serve the corn chip salad immediately, or refrigerate until ready to serve.