Grilled Blackened Tuna Steak Recipe with Mango Avocado Salsa

4.37 from 69 votes

This delicious blackened tuna steak recipe is easy to make in half an hour. The mango avocado salsa provides a hint of sweet and a lot of texture.

Prep Time15

Cook Time5

Total Time20

Course: Seafood Recipes

Cuisine: American

Servings: servings

Calories: 515kcal

To make the seasoning mix, whisk all ingredients together and store in an airtight container. The mix should keep well for at least three months.
To make the mango avocado salsa, mix all ingredients in a medium bowl. Taste and adjust the seasonings if desired.
To make the grilled blackened tuna steaks, heat a grill over high heat (or a grill pan on the stove over medium-high).
Coat the tuna steaks with the blackening seasoning on all sides, then spray the top and bottom with cooking spray.
Add the steaks to the hot grill and cook for 1-2 minutes per side, or until black grill marks have formed but the inside is still rare. Serve hot topped with mango avocado salsa.

Try using smoked paprika instead of regular paprika (or one tablespoon of each) in the blackening seasoning for a smokier, spicier flavor.
Using one teaspoon of cayenne pepper in the seasoning will lead to a medium spice level for the finished dish, so feel free to adjust the amount to suit your preferences.
I know eating rare fish sounds scary, but tuna is a very lean fish and can dry out quickly. Cooking the fish completely makes it dry and not as tasty.
Ataulfo or champagne mangos (the small ones with yellow skin) are best here because they’re not as fibrous, but you can also use a red mango. If mangos are hard to find, the salsa is also delicious with pineapple, peaches, or strawberries. You will need about a cup of chopped fruit.