Cook the corn if using fresh kernels and cool completely.
In a large bowl, combine the cooled corn with diced cucumber.
Add chopped red onion and diced bell pepper.
Stir in chopped cilantro for added freshness.
In a small bowl, whisk together olive oil and lime juice.
Season the dressing with salt and pepper to taste.
Pour the dressing over the salad ingredients.
Toss everything together until well combined.
Chill in the refrigerator for at least 30 minutes before serving.
Serve chilled and enjoy!