Cook the Pasta: Bring a large pot of salted water to a boil. Add pasta and cook according to package instructions, usually about 8-10 minutes. Once cooked, drain and rinse under cold water to cool down the pasta quickly.
Prepare the Veggies: While the pasta is cooking, slice the cherry tomatoes in half, dice the cucumber, and thinly slice the red onion and bell peppers. Set aside.
Make the Dressing: In a small bowl, whisk together the olive oil, red wine vinegar, Dijon mustard, garlic, salt, and pepper.
Assemble the Salad: In a large mixing bowl, combine the cooled pasta with the prepared veggies. Add the olives and crumbled feta cheese. Drizzle with the dressing and toss gently to combine.
Serve and Enjoy: Garnish with fresh herbs like basil or parsley if desired. Serve immediately or refrigerate for 30 minutes to allow the flavors to blend.
