Start by tossing the chickpeas in olive oil, cumin, chili flakes, oregano, salt and pepper. Place them in baking sheet and roast for about 20 minutes at 200°C/390°F.
Cook the couscous according to the instructions on the package.
While everything is cooking, prepare the vegetables and chop them according to your liking.
In a small jar prepare the salad dressing. Add all the ingredients together and shake vigorously until everything is combined.
Once everything is prepared, combine everything together. If using immediately, mix in the herb salad dressing, if not, let the dressing until the last minute so that the salad doesn't get too soggy.