How to Make It
In a small bowl, combine the olives, capers, lemon zest, 2 teaspoons of the oil, and ¼ teaspoon salt.
Heat 1 teaspoon of the remaining oil in a large skillet over medium-high heat. Add the broccolini, garlic, ½ cup water, and ¼ teaspoon each salt and pepper. Cover and cook, tossing occasionally, until the water has evaporated and the broccolini is just tender, 6 to 8 minutes.
Meanwhile, heat the remaining teaspoon of oil in a large nonstick skillet over medium-high heat. Season the salmon with ¼ teaspoon each salt and pepper and cook until opaque throughout, 3 to 5 minutes per side. Top the salmon and broccolini with the olive relish.