In a mixing bowl, whisk together olive oil, minced garlic, lemon juice, salt, and black pepper.

Place the salmon fillets in a shallow dish and pour the marinade over them. Let marinate for 15 minutes.

Preheat the grill to medium-high heat. Remove salmon from marinade and place on the grill. Cook for about 4-5 minutes per side, or until the salmon flakes easily with a fork.

In a small bowl, combine Greek yogurt, lemon juice, chopped dill, honey (if using), and salt. Mix well.

Serve the grilled salmon with the lemon-dill sauce drizzled on top.