Preheat your grill or grill pan to medium-high heat.
Finely mince the garlic and chop the fresh dill and parsley.
In a small bowl, whisk together the extra virgin olive oil, fresh lemon juice, lemon zest, minced garlic, dill, and parsley.
Place the salmon fillet and trimmed asparagus spears on a large plate or tray.
Brush the lemon-herb marinade over both sides of the salmon and coat the asparagus evenly.
Season both the salmon and asparagus with the sea salt and black pepper.
Place the salmon on the grill skin-side down and cook for 4-5 minutes, then flip and cook for another 3-4 minutes until flaky.
Add the asparagus to the grill during the last 5 minutes of cooking, turning occasionally until tender-crisp with light char marks.
Remove from heat and serve immediately with an extra wedge of lemon if desired.