Tomato, Cucumber and Corn Salad

Name: Tomato, Cucumber and Corn Salad
Total time: 20 min
Ingredients: 1 to 1 1/4 pounds ripe tomatoes, cut in small dice; 1/2 European cucumber, 2 Persian cucumbers or 1 regular cucumber, peeled if waxy, seeded if the seeds are large, and cut in small dice; 2 ears corn, steamed for 4 minutes and kernels removed from the cob; 1 to 2 serranos or jalapeño pepper, minced (seeded for a milder salad), or 1/2 teaspoon Aleppo pepper; Salt to taste; 1/4 cup chopped cilantro; 2 tablespoons rice vinegar; 1 tablespoon fresh lime juice or lemon juice; 2 tablespoons extra virgin olive oil; Optional: 1 ounce feta, crumbled (about 1/4 cup)