Bring a large pot of salted water to a boil. Add the pasta and cook according to package instructions until al dente, typically around 8-10 minutes. Stir occasionally.
Once cooked, drain the pasta in a colander and rinse with cold water to cool it down. Let it drain completely.
In a large mixing bowl, combine the cooled pasta, cherry tomatoes, cucumber, red bell pepper, red onion, black olives, and feta cheese. Toss gently to combine.
In a small bowl, whisk together the olive oil, red wine vinegar, dried oregano, salt, and pepper.
Pour the dressing over the pasta salad and toss to coat evenly. Adjust seasoning if necessary.
Serve immediately or refrigerate for about 30 minutes to allow the flavors to meld. Garnish with fresh basil leaves if desired.