Preheat the grill to medium-high heat and lightly oil the grates to prevent sticking.
In a small bowl, whisk together the minced garlic, chopped parsley, dill, and olive oil.
Season the salmon fillet with sea salt and black pepper, then rub the herb mixture evenly over the top.
Place the salmon on the grill, skin-side down, and cook for 4-5 minutes without moving it to ensure a good sear.
Flip the salmon carefully and grill for another 3-4 minutes until it reaches your desired doneness and flakes easily with a fork.
Grill the asparagus spears alongside the salmon for about 5 minutes, turning occasionally, until tender and slightly charred.
Squeeze fresh lemon juice over the grilled salmon and asparagus just before removing them from the heat.
Serve the lemon herb salmon and asparagus over a bed of warm cooked quinoa for a complete, clean-eating meal.