Name: Grilled Sea Bass with Herb Butter
Prep time: 15 min
Cook time: 12 min
Total time: 27 min
Ingredients: 4 fillets sea bass (about 5–6 ounces each), skin-on if possible; 2 tablespoons olive oil; 1 teaspoon kosher salt; 1/2 teaspoon freshly ground black pepper; 1 teaspoon lemon zest; 4 tablespoons unsalted butter, softened; 1 clove garlic, finely minced; 1 tablespoon fresh parsley, finely chopped; 1 tablespoon fresh chives, finely chopped; 1 teaspoon fresh thyme leaves, chopped; 1 tablespoon fresh lemon juice; 1/4 teaspoon kosher salt; 1/8 teaspoon freshly ground black pepper; 4 wedges lemon; 1 tablespoon extra chopped fresh herbs (parsley or chives)

Grilled Sea Bass with Herb Butter tastes rich, buttery, and bright, with crispy edges and a juicy, flaky center that feels like a restaurant meal at home. It works perfectly for busy weeknights or relaxed date nights, and you can pull it off in about 30 minutes, start to finish. I first made this on a tiny apartment balcony grill, and my neighbors still ask about “that amazing fish” years later.

Why Grilled Sea Bass with Herb Butter Is Worth It

Sea bass stays tender and moist on the grill, so you get beautiful char marks without dry, sad fish. The herb butter melts into every flake and adds layers of flavor that taste fancy but require almost no effort.

You also need only a short ingredient list and basic tools. Cleanup stays easy, and the recipe works on an outdoor grill or a stovetop grill pan, so you can enjoy it year-round.

“This Grilled Sea Bass with Herb Butter tastes like a high-end seafood restaurant meal, but I made it on a Tuesday in yoga pants. The fish turned out flaky, juicy, and perfectly seasoned, and the herb butter soaked into every bite. My family asked me to double the recipe next time and declared it ‘special-occasion good’ even though it took under half an hour.”

Ingredients You Need

Sea bass and marinade

4 sea bass fillets (about 5–6 ounces each, skin-on if possible)
- Chilean, European, or black sea bass all work. Choose firm, fresh-smelling fillets.
2 tablespoons olive oil
1 tablespoon lemon juice (fresh tastes best, bottled works in a pinch)
1 teaspoon lemon zest
1 teaspoon kosher salt
½ teaspoon black pepper
½ teaspoon smoked paprika (adds a subtle smoky note even on a gas grill)
¼ teaspoon garlic powder

Herb butter

6 tablespoons unsalted butter, softened
- Use plant-based butter for a dairy-free version.
2 tablespoons fresh parsley, finely chopped
1 tablespoon fresh chives, finely chopped
1 tablespoon fresh dill, finely chopped (or basil if you prefer)
1 small garlic clove, very finely minced or grated
½ teaspoon lemon zest
1 teaspoon lemon juice
¼ teaspoon kosher salt (taste and adjust)
Pinch of red pepper flakes (optional, for a little heat)

Optional garnish and sides

Lemon wedges
Extra chopped herbs
Grilled lemon halves (cut lemons in half and grill cut-side down)
Simple sides: grilled asparagus, steamed rice, roasted potatoes, or a crisp salad

Pantry shortcuts and brand notes

Use a good-quality salted butter and skip the extra salt in the herb butter if you prefer.
Use dried herbs if you need to: use 1 teaspoon dried parsley and ½ teaspoon dried dill in place of the fresh herbs.
Pre-minced garlic from a jar works, but use half the amount since it tastes stronger.
Use avocado oil instead of olive oil if you grill over very high heat.

Equipment list

Outdoor grill (gas or charcoal) or stovetop grill pan
Small bowl for herb butter
Medium bowl or zip-top bag for marinating fish
Tongs and a thin metal spatula (fish spatula helps a lot)
Paper towels
Instant-read thermometer (helps avoid overcooking)
Small brush or folded paper towel and tongs for oiling grill grates

Quick Tips & substitutions

Pat the sea bass very dry before seasoning so the fish browns well and does not stick.
Oil the grill grates generously and heat them well before you add the fish.
Keep the skin on if possible; it protects the flesh and adds flavor.
Use cod, halibut, or snapper if you cannot find sea bass; adjust cooking time for thinner fillets.
Swap butter with a vegan butter and skip the garlic butter on top for a dairy-free version.
Use dried herbs in the butter if needed; use about one-third the amount of fresh.
Grill on medium-high heat so the outside chars while the inside stays juicy.
Do not move the fish around; let it sit so it forms a crust and releases easily.
Make extra herb butter and store it in the fridge or freezer for quick flavor boosts on veggies or chicken.
Use a cast-iron grill pan on the stove if you do not have an outdoor grill.

How to Make Grilled Sea Bass with Herb Butter

Step 1: Mix the herb butter

Add softened butter to a small bowl. Stir in parsley, chives, dill, garlic, lemon zest, lemon juice, salt, and red pepper flakes. Mix until the herbs spread evenly through the butter and taste a tiny bit to adjust salt or lemon.

Scoop the herb butter onto a piece of parchment or plastic wrap. Roll it into a log and chill it in the fridge while you prep the fish. This step helps the butter slice cleanly and melt slowly over the hot fish.

Step 2: Prep and season the sea bass

Pat the sea bass fillets dry with paper towels on both sides. Dry fish browns better and sticks less. Place the fillets in a shallow dish or a zip-top bag.

Whisk olive oil, lemon juice, lemon zest, salt, pepper, smoked paprika, and garlic powder in a small bowl. Pour this mixture over the fish and coat each fillet well. Let the fish sit at room temperature for 10–15 minutes while you heat the grill.

Step 3: Heat and oil the grill

Preheat your grill to medium-high heat. Aim for about 400–425°F if your grill has a thermometer. While it heats, fold a paper towel, dip it in oil, and hold it with tongs.

Rub the oiled paper towel over the grill grates several times. This step creates a slick surface and helps prevent sticking. Keep the grill lid closed while it heats so it holds steady temperature.

Step 4: Grill the sea bass, skin-side down

Place the sea bass on the grill skin-side down if your fillets have skin. Lay them at an angle to the grates to get nice grill marks. Close the lid and cook without moving the fish for 4–5 minutes, depending on thickness.

Check the edges; they should look opaque and slightly browned. Use a thin spatula to gently lift one fillet. If it releases easily and shows good color, flip it carefully.

Step 5: Finish cooking and add herb butter

Cook the second side for another 3–4 minutes. Aim for an internal temperature of 130–135°F in the thickest part, or cook until the fish flakes easily with a fork but still looks juicy. Do not overcook; sea bass dries out quickly.

Turn off the grill or move the fillets to a cooler side. Slice coins of the chilled herb butter and place one or two on each hot fillet. The butter will melt over the sea bass and drip down into all the little flakes.

Step 6: Rest and serve

Let the grilled sea bass rest for 2–3 minutes so the juices settle and the herb butter soaks in. Squeeze fresh lemon over the top. Sprinkle extra herbs if you like a bright, fresh finish.

Serve the Grilled Sea Bass with Herb Butter with your favorite sides while it still tastes hot and flaky. I like to add grilled lemon halves on the plate so everyone can squeeze more citrus over their fish.

Recipe Variations

Gluten-free: The recipe already stays gluten-free; just pair it with rice, potatoes, or a salad instead of breaded sides.
Dairy-free: Use a dairy-free butter alternative and skip any cheese-based sides.
Low carb: Serve with grilled asparagus, zucchini, cauliflower rice, or a big green salad.
Extra garlicky: Add an extra clove of garlic to the herb butter and a pinch of garlic powder to the fish.
Spicy version: Add more red pepper flakes to the herb butter and a pinch of cayenne to the seasoning mix.
Mediterranean twist: Add chopped fresh oregano and basil to the butter and top the fish with a quick tomato-cucumber salad.
Citrus herb mix: Use a blend of lemon and orange zest in the butter for a slightly sweeter citrus note.
Kid-friendly: Skip the red pepper flakes and serve with simple rice and steamed veggies.

Ways to Serve Grilled Sea Bass with Herb Butter

Over fluffy jasmine rice with extra herb butter drizzled on top.
With grilled asparagus, green beans, or broccolini on the side.
On top of a big mixed green salad with cucumbers, cherry tomatoes, and avocado.
Alongside roasted baby potatoes or garlic mashed potatoes.
In lettuce cups with shredded cabbage, avocado, and a squeeze of lime.
With quinoa or couscous and a simple cucumber-yogurt sauce.
Flaked into tacos with shredded cabbage, salsa, and extra lemon or lime.

Storage Success

Let leftover grilled sea bass cool to room temperature, then store it in an airtight container in the fridge for up to 2 days. Keep the herb butter separate if you have extra and chill it tightly wrapped for up to a week, or freeze it for a month. Reheat the fish gently in a covered skillet over low heat with a tiny splash of water or broth so it stays moist. Use leftovers in tacos, salads, or grain bowls instead of reheating it multiple times.