Avocado and Tomato Couscous Salad with Lime Dressing

I first made this recipe with quinoa instead of couscous, which worked very well. When I made it last night to take to a shared dinner for healthy people (otherwise known as a party held by my gym) I used couscous instead of the quinoa, because couscous is quicker to cook. I have adapted it from a similar recipe at Oh She Glows

Avocado and Tomato Couscous Salad