Preheat oven broiler to high or if a broiler is not available heat the oven to 500 degrees.
In a large bowl, combine the romaine, tomato, cucumber, bell pepper, parsley, mint, lemon juice, and 1 teaspoon of the lemon zest. Toss well and set aside.
Spray a baking sheet with nonstick spray and place the salmon filets on the sheet. Sprinkle with salt and pepper. Place under the oven broiler can cook for about 10 minutes or until lightly browned on top and cooked through. Check the salmon halfway through and rotate the pan as needed so the salmon browns evenly.
Spoon the salad into serving bowls and place the salmon on top. Sprinkle the remaining lemon zest on top of the salmon. Serve and enjoy!