Cook the pasta according to the package instructions until al dente. Drain and rinse with cold water to stop the cooking process. Set aside.
In a large bowl, combine the crab meat, diced bell peppers, cucumber, red onion, parsley, and dill or cilantro.
In a separate small bowl, whisk together the olive oil, lemon juice, Dijon mustard, salt, and pepper until well combined.
Pour the dressing over the crab and vegetable mixture and toss gently to coat everything evenly.
Add the cooked pasta to the bowl and toss again until all the ingredients are well combined.
Taste the salad and adjust the seasoning if needed. Feel free to add more salt, pepper, or lemon juice according to your preference.
Cover the bowl with plastic wrap and refrigerate for at least 1 hour to allow the flavors to meld together.
When you're ready to serve, give the salad one final toss and enjoy it chilled with your family!