Combine the cut veggies and half of the dressing with the pasta. Cover and refrigerate for at least an hour.
Before serving, remove from the fridge and stir. The pasta will appear dry.
Add the remaining dressing and stir until the pasta is well coated.
Taste and add additional salt and pepper if needed.
Top with fresh chopped parsley before serving, optional.
Notes
Rinse the pasta with cold water - This stops the cooking and cools everything down quickly, so the dressing doesn’t get absorbed too fast.
Let the pasta drain well - Excess water will dilute your dressing and make the salad watery.
Add the dressing in two stages - Stir in about half of the dressing while the pasta is still slightly warm so it can soak in all that flavor. Cover and refrigerate for at least an hour. Just before serving, add the remaining dressing and stir well. This keeps the salad creamy and prevents it from drying out.
Taste and adjust at the end - After chilling, you may need a bit more salt, pepper, or a splash of vinegar to brighten everything up.