In a bowl, whisk together the Greek yogurt, lemon juice and zest, chopped dill, salt, and pepper until well combined.
Set aside.
Preheat your grill to medium-high heat.
Brush the salmon fillets with olive oil and season with salt and pepper.
Place the salmon fillets on the grill, skin-side down.
Cook for 4-5 minutes per side, or until the salmon is cooked through and flakes easily with a fork.
Remove from heat and cover with aluminum foil.
Serve the grilled salmon hot, topped with a spoonful of the lemon-dill sauce.
Garnish with lemon slices and fresh dill sprigs.
Enjoy!