1. Cook pasta according to packet directions, then drain.
  2. Heat a skillet or fry pan over a medium heat and add 2 tbsp of the olive oil.
  3. Once the oil has heated up add the carrot, zucchini, spring onions and basil, season with the pepper to taste and sauté for 1-2 minutes to soften. Do not overcook as you want to retain some crunch in the vegetables.
  4. In large bowl combine the oil, lemon zest, juice, vinegar, sesame seeds, garlic and onion salt. Now add the pasta, shrimps and toss well to combine and coat all the cooked pasta.
  5. Cover and chill for at least 2 hours or longer; stirring occasionally.