Preheat oven to 425°.
Heat oil in a large skillet over medium-high heat. Add leek and red pepper; cook, stirring constantly, 2 minutes. Add snow peas and 1/4 teaspoon salt; cook over medium heat 1 minute. Remove from heat. Transfer vegetables to an 11- x 7-inch baking dish coated with cooking spray. Top with fish.
Combine remaining salt, orange rind, and remaining 5 ingredients. Pour orange mixture over fish.
Bake at 425° for 25 minutes or until fish flakes easily when tested with a fork.
Oxmoor House Healthy Eating Collection