Updated on July 21st, 2025
Baking tuna steaks in foil is one of the easiest and most flavorful ways to enjoy this meaty fish. Wrapped in foil and baked with aromatics, herbs, and white wine, each tuna steak becomes tender and infused with savory flavor. This technique, known as cooking en papillote, locks in moisture while allowing the seasonings to soak into the fish. It’s a great choice for home cooks who want a fast, clean, and delicious way to prepare tuna without overcooking it.
Why this recipe works
- Moist heat method: Cooking in foil traps steam, keeping the tuna steaks juicy and tender.
- Flavor infusion: Garlic, onions, mushrooms, parsley, and white wine bring bold flavor into every bite.
- Customizable seasoning: You can easily adjust the ingredients to suit your taste or add other aromatics like leeks or capers.
- Fast and mess-free: With minimal prep and no pan-frying, this foil-baked method is quick, clean, and ideal for weeknights.
Serving suggestions
- Pair with light sides: Serve with rice pilaf, couscous, or a simple side salad to keep the focus on the flavorful tuna.
- Add steamed vegetables: Asparagus, green beans, or sautéed spinach make excellent additions to round out the plate.
- Finish with citrus: A squeeze of lemon or a spoonful of citrus butter over the tuna adds brightness and complements the herbs.
- Serve directly in foil: For easy cleanup and a rustic presentation, serve each foil packet straight on the plate.
Oven-Baked Tuna Steaks in Foil
Learn how to cook tuna steaks in oven in foil using this easy recipe.
- Total Time: 30 minutes
- Yield: 2 Servings 1x
Ingredients
Scale
- Four tuna steaks, 6 ounces each
- Eight medium mushrooms, chopped
- Four tablespoons Italian parsley, finely chopped
- Three cloves garlic, minced
- Two medium onions, chopped
- Two tablespoons butter, unsalted
- One cup dry white wine
- Black pepper, freshly ground
- Salt
Instructions
- Set the oven to preheat at 350F. Let the butter melt in a pan over medium heat and sauté the onions and garlic for three minutes. Next, toss in the mushrooms and cook for another five to seven minutes, stirring constantly.
- Arrange two layers of aluminum foil in four places, and place a tuna steak at the center of each foil sheet. Fold the edges so the foil forms a makeshift dish.
- Scoop a quarter of the sautéed mix onto each tuna steak, sprinkle pepper, salt, and parsley, and add a quarter cup of white wine over each steak.
- Tent the foil over the tuna steaks and seal the edges tightly. Then, place the foil-wrapped tuna steaks on a baking sheet and toss them in the oven.
- Bake the tuna steaks for about 15 to 20 minutes, depending on your preferred doneness.
Another impressive oven-cooked tuna steak in foil can be found here.
Nutrition
- Serving Size:
- Calories: 326
- Sugar: 6.2 g
- Sodium: 1202.5 mg
- Fat: 12.3 g
- Carbohydrates: 16.7 g
- Protein: 17.9 g
- Cholesterol: 52.7 mg