Pat the salmon fillet dry with a paper towel to ensure a crisp sear.
In a small bowl, mix the dried dill, garlic powder, sea salt, and black pepper.
Season the salmon evenly with the spice mix, then press the hemp seeds firmly onto the top of the fillet to form a crust.
Heat the olive oil in a non-stick skillet over medium-high heat.
Place the salmon in the pan, crust-side down first, and sear for 3-4 minutes until golden.
Flip the salmon carefully and cook for another 3-4 minutes until the fish is opaque and flakes easily.
In a large serving bowl, toss the cooked quinoa, baby spinach, and diced cucumber together.
Drizzle the lemon juice over the salad mixture and toss gently to coat.
Place the warm herb-crusted salmon on top of the salad and serve immediately.