This grilled grouper recipe is a deliciously light and tasty main course with the perfect touch of heat from my Cajun seasoning. Grouper is a delightfully moist and flaky white fish that does well on the grill, and it's easy to pair with any of your favorite sides!
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Easy Grilled Grouper Fillets
Grouper is a mild, slightly sweet white fish that takes well to any seasoning. In this recipe, Cajun flavor brings a welcome kick, and if you are a fan of fish, you will thoroughly enjoy it when charred on the grill.
🥘 Ingredients
This grilled grouper recipe is so simple that you only need a handful of ingredients. My recipe for Cajun seasoning, paired with herbes de provence, supplies such a beautiful crust when cooked on the grill.
- 2 pounds Grouper Fillets - 2 pounds comes to about 4 8-ounce portions, about 1 ½ inches thick.
- 2 teaspoons Cajun Seasoning - My Cajun seasoning recipe is traditional and delicious, but if you have a specific brand that you like to use feel free to substitute!
- 1 teaspoon Herbes de Provence - My herbes de provence recipe is simple to make, but if you are crunched on time, you can find a pre-made mix at any local grocery store!
- 1 large Lemon - Acid is crucial to this recipe. If you do not have lemons, you can use 2 small limes!
- 2 tablespoons Butter - Butter is also a crucial part of this recipe, as it adds some much needed fat.
Be sure to see the free printable recipe card below for ingredients, exact amounts & instructions with tips!
🔪 How To Grill Grouper
There are just a few easy steps to this recipe. Heat up your grill while you season and prepare your fish.
- Season. Generously season the 2 pounds of grouper fillets with the 2 teaspoon Cajun seasoning and 1 teaspoon Herbes de Provence, making sure that all sides are coated.
- Prep the Grill. Clean your grill thoroughly and heat the grill (with optional grill or fish basket) to a high heat, about 400°F (205°C).
- Grease the Grill. Generously oil your grill grate, grate basket, or wire fish basket with vegetable or canola oil (they have a high smoke point). When the grill reaches temperature, place the fish on the grill and close the lid. Let them cook for 4-6 minutes (or more for thicker fillets). Brush the top of the fillets with 2 tablespoons melted butter, if desired. Flip the fillets and brush the grilled side as well.
- Continue to Grill. Close the lid of your grill and continue cooking an additional 4-6 minutes. Remove the grouper fillets when they are just shy of being done (they will finish cooking during the resting time).
- Grill the Lemons. Your fillets should be white, with only a hint of transparency at the center when it is ready to set aside. Once you remove the fillets, place the 1 large lemon slices on the hot grill and sear on both sides.
- Rest and Serve. Allow the grilled grouper to sit for 10 minutes with foil loosely draped over them. Lift the foil and serve with the grilled lemon slices!
For a side try something light, like roasted okra or something rich like lemon asparagus orzo.
As always, we love our drawn butter with any fish or seafood. You can also try the super flavorful Bloves sauce. Enjoy!
💭 Tips & Notes
- Cooking time is approximately 4 minutes per side per inch of your grouper fillet thickness. My fillets were 1 ½ inch thick, so they cooked at 6 minutes per side.
- A grill basket, fish grate, or fish basket makes grilling any fish much easier. If you don't have one of these, make sure that your grill grates are extra clean and well oiled before grilling the grouper.
- Cooked grouper can be refrigerated in an air-tight container for up to 3-4 days. If freezing them, they will last for up to 4 months, but it is best when used within the first 1-2 months.
- When reheating the grouper fillets, I advise using the oven. Preheat your oven to 400°F (205°C). Place the grouper fillets on a foil lined baking sheet. Place 1 teaspoon of butter on each fillet and drape an aluminum foil "tent" over each fillet. Bake for about 5-7 minutes, until the grouper is heated throughout.
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🐟 More Tasty Seafood Recipes
- Coctel de Camarones (Mexican Shrimp Cocktail)
- Pan Seared Swordfish
- Pan Seared Sea Bass
- Boiled Lobster
- Air Fryer Frozen Shrimp
- Blackened Cod
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📖 Recipe Card
Grilled Grouper
Ingredients
- 2 lbs grouper fillets (4 portions of 8 ounces each, about 1 ½ inches in thickness)
- 2 teaspoon Cajun seasoning (see recipe or use your favorite brand)
- 1 teaspoon Herbes de Provence
- 1 large lemon (sliced - use more for serving if desired)
- 2 tablespoon butter (optional, for brushing onto your grilling fillets)
Instructions
- Season the grouper fillets with the Cajun seasoning and herbes de provence, making sure that all sides are generously coated.
- Prep the grill and grab your fish basket or grill basket if you have one. Clean your grill and heat the grill (with optional grill or fish basket) to high heat, about 400°F (205°C).
- Oil your grill grate, grate basket, or wire fish basket liberally then place the fish on the heated grill and close the lid. Cook for 4-6 minutes, or more for thicker fillets. Brush the upward facing side with melted butter if desired, then flip and brush the cooked side that is now facing upward.
- Close the lid of your grill and continue cooking an additional 4-6 minutes then remove the grouper fillets when they are just shy of being done (they will finish cooking during the resting time).
- Your fillets should be opaque with only hint of being transparent at the center when it is ready to rest. Once you remove the grouper, add the lemon slices onto the hot grill and sear on both sides if desired.
- Rest the grilled grouper for 10 minutes, tented loosely with a square of aluminum foil, for 10 minutes before serving.
Notes
- A grill basket, fish grate, or fish basket makes grilling any fish much easier. If you don't have one of these, make sure that your grill grates are extra clean and well oiled before grilling the grouper.
- Cooking time is approximately 4 minutes per side per inch of your grouper fillet thickness. My fillets were 1 ½ inch thick, so they cooked at 6 minutes per side.
- Cooked grouper can be refrigerated for up to 3-4 days, or freeze for up to 4 months (best used within the first 1-2 months).
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