Preheat oven to 200°C. In a small bowl, lightly toss the edamame in the oil, salt and pepper then place on a baking tray in the centre of the oven for 15-20 minutes.
While the edamame is cooking, make the dressing. Start by mashing the avocado until smooth. Then stir in the remaining dressing ingredients until it becomes a thinner consistency. The end dressing will still be quite thick.
Mix the salad ingredients in a large bowl and stir in the dressing until fully coated.
Add the seeds to a small frying pan on a low to medium heat and leave for a few minutes until seeds start to pop. Remove from heat and add the chilli powder. Toss the pan to evenly distribute the chilli powder. Add the tamari and toss again.