Start by combining softened butter, minced garlic, chopped parsley, dill, lemon zest, and lemon juice in a bowl. Mix everything well until smooth and evenly blended. I like to let it sit for a few minutes so the flavors meld together nicely.
Pat the sea bass fillets dry with a paper towel to remove excess moisture. Rub them lightly with olive oil, then season both sides with salt and pepper. This step ensures the fish develops a beautiful crust when grilled
Heat your grill or grill pan over medium-high heat until hot. A properly heated grill prevents sticking and helps create those nice grill marks. I always lightly oil the grates before placing the fish.
Place the fillets skin-side down and cook for about 4–5 minutes without moving them. Carefully flip and cook for another 3–5 minutes until the fish is opaque and flakes easily. Avoid overcooking to keep it juicy.
Once cooked, immediately top the hot fish with a generous spoon of herb butter. Let it melt naturally over the fillets for extra flavor. Serve right away with a squeeze of fresh lemon if desired.