Preheat the oven to 400°F (200°C).
Prepare the quinoa according to package instructions.
Toss the asparagus and peas with olive oil, salt, and pepper in a bowl.
Spread the seasoned vegetables on a baking sheet and roast for 10 minutes.
While the vegetables are roasting, season the salmon fillets with salt, pepper, and lemon zest.
Add the seasoned salmon to the baking sheet with the vegetables and roast for another 12-15 minutes, until the salmon is cooked through.
Remove the baking sheet from the oven, and drizzle with lemon juice.
To serve, layer quinoa in bowls, top with salmon, browned asparagus, and peas. Garnish with fresh herbs.