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closeup of flaky garlic butter halibut fish in a cast iron skillet

Garlic Butter Halibut Fish Recipe

Light, flakey, and moist, you are going to love this Garlic Butter Halibut Fish Recipe. It's so easy to make with only a few simple ingredients. Low-carb, gluten-free, and keto-friendly, this easy fish recipe cooks up quickly, making it the perfect weeknight meal!
Course dinner
Cuisine American
Keyword baked halibut recipe, garlic buter sauce, halibut fish recipe, Halibut recipe
Prep Time 5 minutes
Cook Time 8 minutes
0 minutes
Total Time 13 minutes
Servings 3 people
Calories 269kcal



  • In a large skillet heat olive oil over medium high heat. Pat halibut fish dry with paper towel and season all over with garlic powder, onion powder, paprika and salt and pepper.
    overhead view of raw halibut fish in a cast iron skillet
  • Place the halibut filets in a large (10-inch) cast iron skillet and turn the heat to medium. Sear fish for 3-4 minutes. Flip your fish fillets over to cook the other side. Set aside once the fish is cooked.
    overhead view of cooked halibut fish in a cast iron skillet
  • Reduce the heat to low and add butter in the skillet. When it melts, add garlic. Cook for about 30 seconds or 1 minute. Be careful not to burn the garlic.
    overhead view of melted butter and chopped garlic in a cast iron skillet
  • Gently bring back the fish to the pan. Using a spoon, pour some of the butter sauce left in the skillet onto the halibut fillets before serving. Garnish with fresh rosemary.
    overhead view of garlic butter halibut fish in a cast iron skillet



  • I recommend rinsing the halibut and patting dry before using. 
  • Do not leave the fish in the pan when it is done. The residual heat from the cast iron will continue to cook the fish.
  • Try to buy fillets that are similar in size so they cook evenly. 
  • To store: Leftover fish keep for 3 to 4 days in the fridge in an airtight container. 
  • To reheat: I like to reheat the fish in the skillet gently so it does not overcook and become dry.


Serving: 1/3 | Calories: 269kcal | Carbohydrates: 2g | Protein: 25g | Fat: 17g | Saturated Fat: 8g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 7g | Cholesterol: 91mg | Sodium: 286mg | Potassium: 611mg