Boil the pasta in salted water according to the package instructions.
Once cooked, drain and rinse the pasta under cold water to cool it down.
While the pasta is cooking, chop all the vegetables and set aside.
In a small bowl, whisk together the olive oil, red wine vinegar, Dijon mustard, minced garlic, dried oregano, salt, and black pepper. Adjust the seasoning to taste.
In a large mixing bowl, combine the cooked and cooled pasta with the chopped vegetables, black olives, and crumbled feta cheese.
Pour the dressing over the salad and toss everything together until well coated.
Refrigerate the pasta salad for at least 1 hour before serving to allow the flavors to meld.
Before serving, give it a final toss and adjust the seasoning if necessary.
Garnish with additional feta cheese, chopped fresh herbs like parsley or basil, and a drizzle of extra virgin olive oil before serving.
This pasta salad is perfect for picnics, barbecues, or as a refreshing side dish. Feel free to customize it by adding grilled chicken, shrimp, or your favorite vegetables. Enjoy!