Boil the gluten free pasta as per the packet instructions. Add a generous pinch of salt and a glug of olive oil to the water and stir the pasta for about the first minute of cooking. This really helps to stop it sticking together!
Whilst the pasta cooks, prep your other ingredients. Slice and chicken and avocado into chunks and the tomatoes into halves. Finely chop the basil.
Make the dressing. Add the mayo, lemon juice, honey, olive oil, mustard and mixed herbs to a bowl and mix well. Add some seasoning to taste.
Once the pasta has cooked, drain it and run it under cold water until no longer hot.
Transfer the pasta to a large mixing bowl. Add the chopped chicken, avocado, tomatoes and basil. Then pour in the dressing and give everything a good mix.