Cook the couscous according to the package directions.
Meanwhile, heat 1 tablespoon of the oil in a large nonstick skillet over medium-high heat.
Season the salmon with the paprika, ½ teaspoon salt, and ¼ teaspoon pepper and cook until opaque throughout, 3 to 4 minutes per side.
In a bowl, combine the cilantro, scallions, lemon juice, remaining oil, and ¼ teaspoon each salt and pepper. Drizzle over the salmon and couscous.