1 . Stage
Pour boiling water over couscous and cover. Leave to swell. Cut the cucumber into random slices.
2 . Stage
Cut the tomatoes into slices.
3 . Stage
Drain the liquid from the canned chickpeas. Mix the chickpeas, cooled couscous, tomatoes and cucumber in a large bowl. Season with salt and pepper to taste.
4 . Stage
Cut the lemon in half. Squeeze out the juice from one half. Cut the other half into slices.
5 . Stage
Place the tuna in a bowl, mash with a fork and add the lemon juice.
6 . Stage
Add the tuna to the salad and stir.
7 . Stage
Before serving, add slices of lemon.