Preheat the oven to 400°F (200°C).
Peel and cube the sweet potato, then toss with olive oil, salt, black pepper, and paprika. Roast for 20–25 minutes.
Season the salmon fillets with olive oil, garlic powder, paprika, salt, and black pepper.
Add the asparagus to the baking tray, drizzle with olive oil, and season lightly.
Place the salmon alongside the vegetables and bake for 12–15 minutes, or until the salmon flakes easily with a fork.
Serve the salmon with the roasted sweet potatoes and asparagus. Garnish with fresh lemon wedges if desired.