How to Make It
Preheat oven to 425°F. Line a rimmed baking sheet with parchment paper. Place salmon, skin side down, on half of prepared baking sheet. Stir together mayonnaise, mustard, dill, 1 teaspoon of the lemon zest, 1/4 teaspoon of the salt, and 1/4 teaspoon of the pepper in a medium bowl. Spread over salmon fillets in an even layer; top with panko, and press lightly to adhere. Spray with cooking spray.
Toss together asparagus, carrots, butter, and remaining 1/2 teaspoon each of lemon zest, salt, and pepper in a medium bowl. Place vegetables on empty side of baking sheet. Bake in preheated oven until salmon is cooked through and vegetables are tender, about 18 minutes. Serve with lemon wedges.