In a large bowl, add in your cooked and oiled rotini pasta.
In a separate bowl, combine and whisk together olive oil, balsamic vinegar, lemon juice, black pepper and salt.
Add in the olives, peppers, cucumbers, tomatoes, corn, onions, parmesan to the bowl of pasta.
Pour over dressing and fold together. Try not to over mix so the veggies keep its shape.
Cover and store in the fridge for at least half an hour, then serve and enjoy!