Preheat the oven to 425°F.
Toss broccoli florets with 1 teaspoon of olive oil, salt, and pepper, then spread them on a baking sheet.
Roast the broccoli in the preheated oven for about 15-20 minutes or until tender and slightly crispy on the edges.
While the broccoli is roasting, season the 5-ounce salmon fillet with salt, pepper, and a drizzle of lemon juice.
Heat a non-stick skillet over medium-high heat and sear the salmon, skin-side down first if applicable, for about 3-4 minutes until a golden crust forms.
Flip the salmon and cook the other side for an additional 3-4 minutes, or until the fish is cooked through but still moist inside.
Reheat or prepare 1/2 cup of cooked quinoa according to package instructions if not done already.
Plate the quinoa, top with the seared salmon, and add the roasted broccoli on the side. Drizzle with any remaining lemon juice and serve immediately.