Grilled Halibut with Dill and Fennel

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

Fresh halibut fillets charred on the grill, topped with a herb-fennel mixture and lemon juice for bright, coastal flavor. This seafood-inspired seafood ready in about 20 minutes pairs (6 oz each) halibut fillets, olive oil, lemon for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 300 calories and feeds 4, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

★ 3.1 (14 ratings) Prep: 10 min Cook: 10 min Serves 4 Seafood cuisine 300 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat grill to 375°F (medium-high).
  2. Step 2: Rub 2 tbsp olive oil over both sides of 4 halibut fillets (6 oz each) and season with salt and pepper.
  3. Step 3: Place fillets on preheated grill. Cook for 4-5 minutes per side, until fish is opaque and flakes easily when tested with a fork.
  4. Step 4: While fish cooks, combine 1/4 cup chopped fresh dill, 1/4 cup chopped fresh fennel, and 1 tbsp lemon juice in a small bowl.
  5. Step 5: Remove halibut from grill and top with dill-fennel mixture. Serve immediately with additional lemon slices.

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Frequently asked questions

How long does Grilled Halibut with Dill and Fennel take to make?

Total time is about 20 minutes (10 min prep + 10 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Grilled Halibut with Dill and Fennel?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep (6 oz each) halibut fillets from drying out.

Can I substitute ingredients in Grilled Halibut with Dill and Fennel?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Grilled Halibut with Dill and Fennel for a different number of people?

The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with Grilled Halibut with Dill and Fennel?

Seafood seafood like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

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