Step 1

Make the dressing. Place all the dressing ingredients in a small bowl and whisk to combine.

Step 2

Soften the red onion in the dressing. Add the finely chopped red onion and stir to combine. Set aside to soften while you prepare the rest of the salad.

Step 3

Cook the pasta. Bring 2 quarts of salted water to a boil in a large pot over medium-high heat. Add the pasta and cook until al dente — soft with just a bit of chew — about 8 minutes or according to package directions. Meanwhile, prepare an ice bath in a large bowl.

Step 4

Quickly cool the pasta. Drain the pasta in a colander and run under cold water. Dunk the colander in the ice bath and set aside to cool for 5 minutes.

Step 5

Place the pasta salad ingredients in a bowl. Drain the pasta well. Transfer to a large bowl. Add the tomatoes, cucumber, mozzarella, salami, olives, and parsley.

Step 6

Toss the pasta with the dressing. Add the dressing, including the onions, to the pasta and toss until evenly combined.

Step 7

Chill for 30 minutes before serving. Refrigerate the pasta salad for at least 30 minutes for the flavors to meld before serving.