Brush salmon with oil and season. Pre-heat grillpan and grill salmon for 6-8mins, turning once.
The salmon is cooked when the flesh is opaque and flakes easily when tested with a fork.
Meanwhile season vegetables and toss in remaining oil. Chargrill alongside salmon if room, otherwise, quickly pan fry.
To prepare couscous, follow instructions on the packet using the chicken stock as the liquid. When ready, combine with cooked vegetables.
Serve salmon on a bed of the savoury couscous.