In a medium bowl, combine 1 cup of sour cream, 2 tablespoons of olive oil, and a pinch of salt and pepper. Add in 1 teaspoon of garlic powder, 1 teaspoon of onion powder, and ½ teaspoon of cumin. Mix well with a whisk until the dressing is smooth and creamy, ensuring there are no lumps.

In a large mixing bowl, add 2 cups of drained sweet corn, 1 can of rinsed black beans, and 1 can of Rotel tomatoes, finely chopped. Also, include 1 cup of diced bell pepper for a fresh crunch. Gently toss all of these vibrant ingredients together using a spatula, ensuring they are evenly distributed and well mixed.

Pour the creamy dressing over the corn mixture in the large bowl. Using a spatula, carefully fold the dressing into the salad, ensuring every ingredient is coated while maintaining their textures.

Just before serving, fold in 2 cups of Fritos chips to give the salad its signature crunch. Be gentle to keep the Fritos intact and crispy.

For a splendid presentation, consider garnishing the salad with extra Fritos, a sprinkle of shredded cheese, or freshly chopped cilantro. Serve the salad chilled or at room temperature.