Place all of the ingredients except for the olive oil, cheese and lemon juice in a large heatproof bowl, cover and set aside for 10 minutes.
If serving with Halloumi, heat the olive oil in a non-stick pan, slice the cheese and fry for 2-3 minutes on each side until golden.
Fluff the couscous with a fork and drizzle over the lemon juice, season to taste and lightly toss to combine the flavours. Serve with the grilled halloumi.
(Amount per serving)