In a small bowl, whisk together your favorite creamy dressing ingredients, combining them well until fully blended. Allow this mixture to sit for about 10 minutes at room temperature.

Slice the red onion thinly and place it in a bowl of cold water for about 10 minutes to mellow the sharpness.

Bring a large pot of salted water to a rolling boil. Add your choice of pasta and cook according to package instructions until al dente, about 8-10 minutes. Drain and rinse under cold water.

Halve the English cucumber lengthwise, scoop out the seeds, and slice it thinly into semi-circles. Sprinkle with salt and let sit for about 10 minutes to draw out moisture.

Combine your cooled pasta, soaked red onion, and cucumber slices in a large mixing bowl. Mix gently to combine.

Pour the creamy dressing over the pasta and vegetables, tossing gently until well-coated.

Cover the bowl with plastic wrap or transfer to an airtight container, and refrigerate for at least 40 minutes before serving.