Preheat your oven to 425°F (220°C) and line a large sheet pan with parchment paper for easy cleanup. Arrange salmon fillets skin-side down, spacing them evenly across the pan. This positioning allows hot air circulation and ensures even cooking throughout.

In a small bowl, whisk together garlic powder, paprika, salt, and black pepper until well combined. Drizzle the olive oil directly over each salmon fillet, then sprinkle the spice mixture evenly across the top. Press the seasonings gently into the fish to ensure they stick during cooking.

Arrange fresh zucchini slices, cherry tomatoes, and asparagus spears around the salmon fillets on the sheet pan. Drizzle vegetables with the remaining olive oil and season with a pinch of salt and pepper. This clean eating summer family approach keeps everything on one pan, minimizing dishes and maximizing efficiency.

In a measuring cup, combine the lemon juice, minced garlic, Dijon mustard, and low sodium vegetable broth. Whisk until the mustard incorporates completely and the mixture becomes smooth. Pour this sauce over the salmon and vegetables, ensuring the fish receives adequate liquid for steaming.

Place the sheet pan in the preheated oven and bake for 18-20 minutes until the salmon flakes easily with a fork. The internal temperature should reach 145°F (63°C) for food safety. Remove from oven and immediately scatter fresh dill over everything while still hot.

Let the healthy summer salmon dinner family meal rest for 2 minutes before serving, allowing flavors to fully develop and the fish to set properly. The vegetables should be tender-crisp, maintaining their nutritional integrity and natural colors. Serve immediately while everything remains warm and the aromas are at their peak.