In a large mixing bowl, combine the sweet corn, diced red bell pepper, sliced green onions, and halved cherry tomatoes. Use a spoon to gently mix the ingredients together, ensuring even distribution.

If using frozen corn, make sure it is thawed and drained. If using canned corn, drain it well to avoid excess moisture.

In a separate bowl, whisk together the sour cream, mayonnaise, lime juice, chili powder, salt, and black pepper until smooth. This dressing will add creaminess and flavor to the salad.

Taste the dressing and adjust the seasoning if necessary, adding more salt or lime juice according to your preference.

Pour the dressing over the salad mixture in the large bowl. Gently fold the dressing into the salad using a spatula, ensuring that all ingredients are coated evenly.

Just before serving, add the crushed Fritos corn chips to the salad and mix gently. This will keep them crispy and provide a delightful crunch.

Serve immediately for the best texture, or refrigerate for up to 1 hour before serving if you prefer a chilled salad.