Prepare the couscous according to the instructions on the package.
Meanwhile, in a large skillet over medium-high heat, heat 2 teaspoons of olive oil. Place scallops in a preheated skillet and sprinkle with 1/4 teaspoon salt and pepper. Cook the scallops for about 2-3 minutes on each side. Transfer to a plate and cover with foil to keep the scallops warm.
Wipe the pan with a paper towel and pour in the remaining olive oil, heat over medium-high heat. Put orange zest and green peas in a frying pan, sprinkle with 1/4 teaspoon of salt and pepper, cook, stirring occasionally until the peas are crispy and soft. Serve green peas with scallops and couscous.