• Step 1: Cook the rotini pasta according to package instructions until al dente. Drain and rinse with cold water to cool completely.
• Step 2: In a large bowl, combine the cooled pasta, diced bell peppers, cherry tomatoes, diced cucumber, and thinly sliced red onion.
• Step 3: In a separate bowl, whisk together the olive oil, red wine vinegar, lemon juice, Dijon mustard, dried oregano, salt, and pepper to make the dressing.
• Step 4: Pour the dressing over the pasta and vegetable mixture, then gently toss to coat everything evenly.
• Step 5: Fold in the crumbled feta cheese and chopped fresh basil and parsley.
• Step 6: Refrigerate the rotini pasta salad for at least 30 minutes to allow the flavors to meld.
• Step 7: Serve chilled or at room temperature, and enjoy!