In a large pot boil water. Add pasta and cook until pasta is partially cooked, then add veggies and boil for another 3 mins until veggies and pasta are tender. Drain and set aside.

Heat oil in skillet and cook onion until fragrant.

Toss onion mixture, parmesan and the dressing into the pasta and veggie mix. Season with salt and pepper to taste.

Serve and enjoy!