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Home » Main Dishes

Healthy Blackened Fish

Updated: Feb 13, 2026 · Published: Aug 3, 2024 by Misty Tannery · This post may contain affiliate links · Leave a Comment

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f you’re looking for a quick, flavorful dinner that feels restaurant-worthy but keeps things light, this Healthy Blackened Fish is the answer. Instead of butter, this recipe uses heart-healthy olive oil and a bold spice blend that delivers just the right balance of heat and flavor without overpowering the fish.

Seared in a hot cast iron skillet, the fish develops that classic blackened crust while staying tender and flaky inside — and the best part? It cooks in just 6 minutes! Perfect for busy weeknights, meal prep, or a healthy high-protein dinner, this easy blackened fish recipe proves that simple ingredients can still pack serious flavor.

Blackened fish fillets cooked in a cast iron skillet with a dark, seasoned crust.
Perfectly seared blackened fish in a cast iron skillet.

If you are looking for more healthy dinners try this Greek Inspired Grilled Chicken Salad!

Jump to:
  • Ingredients
  • Instructions
  • Before & After
  • Spice Blend
  • Sides
  • FAQs
  • Recipes to Try

Ingredients

  • mild white fish fillets (orange roughy, tilapia etc)
  • Tony Chachere's Spices and Herbs blend
  • salt & pepper
  • granulated garlic
  • Extra Virgin olive oil

See exact quantities in recipe card below!

Instructions

First, pat the fish fillets dry with paper towels to help the seasoning stick and create a better sear. Next, drizzle them with a good olive oil and rub it evenly over both sides. Then, generously sprinkle Tony seasoning on both sides, and add a light sprinkle of granulated garlic, salt and pepper.

Meanwhile, heat a cast iron or heavy skillet over high heat and add 1–2 tablespoons of olive oil. This depends on the size of your skillet. You want a light coating all over the bottom of the skillet. Not a puddle. Once the oil is hot and shimmery, carefully place the fillets into the skillet. Cook for about 3-4 minutes per side, depending on thickness, until the fish is white, flaky, and cooked through. Internal temperature should reach 145 degrees.

Before & After

Raw fish fillets coated in blackened seasoning before cooking.
Fish fillets coated in bold blackened seasoning just before cooking.
Close-up of a blackened fish fillet with a crispy seasoned crust.
Crispy, flavorful blackened fish ready to serve from the skillet.

Spice Blend

This is the seasoning blend I love most for my pan seared and healthy blackened fish. You can find it HERE or in your local grocery store.

Tony Chachere's Spice Blend
Tony Chachere's Spice Blend for blacked fish

Sides

If you are looking for something to serve with your fish...there are so many options! We love brown rice as a healthy option. You can also try one of the sides below!

  • Herbed Smashed Potatoes
  • Sauté’d Veggies
  • Almond Rice Pilaf

FAQs

How can I cook this outside like in your video?

I put a large cast iron skillet on my grill. Then heat the grill with the lid closed, up to 400-425 degrees. Then once hot add olive oil and cook as recipe states.

Do I have to use the spice blend?

No! There are so many spice blends on the market you can try! Or make your own.

How is this healthier?

Most blackened fish you find I restaurants are cooked in large amounts of butter. This crust may not be a crisp, but your heart and body will love having a good olive oil instead of the butter.

Recipes to Try

  • greek inspired grilled chicken salad
    Greek Inspired Grilled Chicken Salad
  • Grilled chicken breasts with char marks, garnished with herbs ready to serve on white platter
    The Yummiest Marinade
  • Asian-inspired grilled chicken salad with cabbage, carrots, cucumber, chow mein noodles, and almonds in a white bowl
    Asian Inspired Grilled Chicken Salad
  • eggroll in a bowl
    Egg Roll in a Bowl

Blackened fish fillets cooked in a cast iron skillet with a dark, seasoned crust.
Print Recipe

Healthy Blackened Fish

Healthy Blackened Fish made with olive oil and bold spices, then seared in a cast iron skillet for a crispy crust and flaky interior. This quick and easy 6-minute dinner is packed with flavor and perfect for busy weeknights.
Prep Time5 minutes mins
Cook Time6 minutes mins
Total Time11 minutes mins
Course: Main Course
Cuisine: American
Keyword: fish, healthy, quick weeknight meal
Servings: 3
Calories: 143kcal
Author: Misty Tannery

Equipment

  • large 17 inch cast iron skillet
  • large turner

Ingredients

  • 3 fillets mild white fish orange roughy, tilapia, catfish etc.
  • 3 Tablespoons olive oil divided
  • 3 teaspoons Tony Chachere's Spices and Herbs Blend or to taste
  • 1 teaspoon granulated garlic or to taste
  • 1 teaspoon ground black pepper or to taste
  • ½ teaspoon sea salt or to taste

Instructions

  • Preheat a cast iron skillet.
  • Pat the fish fillets dry with paper towels to help the seasoning stick and create a better sear. 
  • Drizzle 1 Tablespoon of good olive oil over all filets and rub it evenly over both sides. 
  • Sprinkle Tony seasoning, garlic, salt and pepper to both sides of filets and rub in to make sure it is stuck to the olive oil. At this point you can add more seasoning to your taste.
  • Drizzle the remaining 2 Tablespoons of olive oil into the skillet. Making sure the bottom is coated, but not enough to puddle.
  • Once the oil is shimmery carefully place the fillets into the skillet. Cook for about 3-4 minutes per side, depending on thickness, until the fish is white, flaky, and cooked through. Temperature should be 145℉. Serve hot.

Notes

This recipe is easily adapted to tastes. I usually add more seasoning than listed. As I like a spicy flavoring. 
I like to put my cast iron skillet on my outdoor grill and cook outside. Keeping my kitchen smoke and smell free!

Nutrition

Calories: 143kcal | Carbohydrates: 5g | Protein: 1g | Fat: 14g | Saturated Fat: 2g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 10g | Cholesterol: 1mg | Sodium: 391mg | Potassium: 85mg | Fiber: 2g | Sugar: 0.2g | Vitamin A: 88IU | Vitamin C: 0.1mg | Calcium: 83mg | Iron: 2mg

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Misty Tannery-Learned it from My Mom Profile

Thank you for being here! I’m a home cook and food blogger sharing easy, delicious recipes made with love—just like my mom taught me! From quick weeknight dinners to sweet Southern desserts, I post new recipes daily to keep your kitchen inspired. Follow for family favorites, holiday treats, and everyday meals you’ll actually want to make!

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