In a large saucepan, heat the olive oil over medium high heat. Pour in the couscous and stirring frequently, cook until lightly toasted (about 2-3 minutes).
Add the chicken stock, lemon zest, lemon juice, salt and pepper and stir to combine. Bring the mixture to a boil. Reduce the heat to medium-low and simmer about 8 minutes – until the couscous is al dente.
Stir in the peas and 1/2 the rocket and mix until well combined.
In an oven proof saute (fry) pan, heat the EVOO until hot. Season the fillets with salt and pepper and add to the hot pan. Cooking them skin side down for approximately 5 minutes until the skin was nice and crispy. Then flip them over for 3-4 minutes.
To serve add a mound of couscous, a few extra rocket leaves and top with a piece of fish. Add a few shallots, season with a little salt to finish.