Melt 2 Tbsp. margarine in 2-quart saucepan over medium heat and cook green onions, stirring occasionally, 1 minute. Add water and bring to a boil over high heat. Stir in Knorr® Pasta Sides™ - Butter flavor and continue boiling over medium heat, stirring occasionally, 6 minutes or until pasta is almost tender. Stir in zucchini, carrot, 1/2 teaspoon dill, 1/2 tablespoon lemon juice and pepper. Cook, stirring frequently, 1 minute or until pasta is tender.
Meanwhile, arrange salmon on broiler pan sprayed with nonstick cooking spray. Evenly dot salmon with remaining 1 Tbsp. margarine cut into small pieces, 1 tablespoon lemon juice, remaining 1/2 teaspoon dill and if desired, salt and pepper to taste. Broil 5 minutes or until salmon flakes easily with a fork. Break salmon into bite-size pieces and toss with pasta mixture. Garnish, if desired, with sliced lemon and additional dill.