Step 1: Preheat your oven to 425

F (220

C). Line a large baking sheet with parchment paper for effortless cleanup.
Step 2: In a large bowl, toss the halved baby potatoes with 2 tablespoons of olive oil, garlic powder, onion powder, salt, and pepper. Ensure they are evenly coated.
Step 3: Spread the seasoned potatoes in a single layer on one side of your prepared baking sheet.
Step 4: Roast the potatoes in the preheated oven for about 15 minutes, or until they start to become beautifully golden and crisp at the edges.
Step 5: While the potatoes are getting perfectly crispy, season your salmon fillets generously with salt and pepper. In a small bowl, whisk together the melted butter, fresh lemon juice, and the remaining tablespoon of olive oil.
Step 6: After the initial 15 minutes, carefully remove the baking sheet from the oven. Push the partially roasted potatoes to one side. Add the broccoli florets to the other side of the baking sheet. Drizzle the broccoli with a little olive oil, salt, and pepper.
Step 7: Nestle the seasoned salmon fillets between the potatoes and broccoli on the baking sheet. Drizzle that fragrant lemon butter mixture evenly over each salmon fillet.
Step 8: Return the entire pan to the oven and bake for an additional 12-15 minutes, or until the salmon is cooked through and flakes easily with a fork, and the potatoes are tender-crisp and golden.
Step 9: Remove the pan from the oven. Garnish generously with fresh chopped parsley and a few fresh lemon slices. Serve immediately and enjoy the delightful flavors of this healthy and satisfying meal!