Begin by preparing the vegetables. Rinse the tomatoes and cucumbers under cold water. Pat them dry with a clean kitchen towel.
Cut the tomatoes into wedges and place them in a large salad bowl.
Slice the cucumbers into half-moons, about 1/4 inch thick, and add them to the bowl with the tomatoes.
Peel and thinly slice the red onion, then add it to the salad bowl, separating the layers into individual rings or half-moons.
Crumble the feta cheese over the vegetables, distributing it evenly throughout the salad.
In a small mixing bowl, whisk together the extra virgin olive oil, red wine vinegar, salt, and freshly ground black pepper to create the dressing.
Drizzle the dressing over the salad and gently toss to coat the vegetables and feta with the vinaigrette.
Tear the fresh basil leaves and chop the oregano, then sprinkle the herbs over the salad.
Give the salad one final, gentle toss to distribute the herbs and dressing.
Taste and adjust the seasoning if necessary, adding more salt or pepper to your preference.
Serve immediately, or let the salad sit for about 10 minutes at room temperature to allow the flavors to meld together before serving.