Cook the pasta: Get out a large pot, fill it ¾ with water and add enough salt so that the water has a salty taste. Place this over high heat and let the water come to a boil. Toss in your pasta and cook it until it is done to your liking. Strain the pasta in a colander, but don’t rinse it, and set aside.
Toss the pasta in the dressing: Get out a large mixing bowl and add the still warm pasta along with 1 cup of the salad dressing. Use a big spoon to toss these ingredients together until all pieces of pasta are coated in the dressing. Set this aside and let it cool to room temperature.
Add the remaining ingredients: Once the pasta is cooled down to room temperature, toss in the tomatoes, onion, peppers, olives, salami, cheese, and parsley. Pour in another ½ cup of dressing and toss the ingredients until everything is throughout incorporated. Let the pasta salad sit for a couple of minutes then toss it again. Taste the pasta salad and add salt or more dressing if you feel it needs it.
Cover the pasta salad and let it rest in your fridge for at least 3 hours or preferably overnight.
Toss the salad once again before serving and enjoy!