Cook the pasta in salted water until al dente. Drain and rinse with cold water to stop cooking.
Prepare the dressing by blending roasted red peppers, olive oil, vinegar, garlic, mustard, oregano, salt, and pepper until smooth.
Chop the veggies into bite-sized pieces—tomatoes, cucumber, onion, and olives.
In a large bowl, combine pasta, veggies, and feta cheese.
Pour the dressing over the salad and toss well to coat everything evenly.
Let it chill for at least 20 minutes to let the flavors develop (if you have patience).
Garnish with fresh basil before serving for extra freshness.
Enjoy cold or at room temperature—either way, it won’t last long.