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4.9 from 798 votes

Sheet Pan Lemon Herb Tuna Steaks and Potatoes

This Sheet Pan Lemon Herb Tuna Steaks and Potatoes dish is a bold and flavorful one-pan meal, with Italian seasonings and Parmesan cheese, all ready to wow in just 30 minutes! 

Prep Time
15 mins
Cook Time
15 mins
Total Time
30 mins
Servings: 4 servings
Calories: 584 kcal
Course: Main Course
Cuisine: American

Ingredients

  • 4 ¾-inch thick tuna fillets
  • 6 tablespoons olive oil divided
  • Juice of ½ lemon
  • 1 teaspoon salt divided
  • ½ teaspoon pepper
  • ½ teaspoon dried oregano divided
  • ½ teaspoon dried thyme divided
  • ¼ teaspoon dried basil divided
  • 1 teaspoon garlic powder divided
  • 1 ½ pounds baby red potatoes halved
  • 4 tablespoons grated Parmesan cheese
  • additional lemon slices for garnish optional

Instructions

    Cup of Yum
  1. Preheat oven to 450 degrees. Combine 4 tablespoons olive oil, lemon juice, 1/2 teaspoon salt, 1/4 teaspoon pepper, 1/4 teaspoon oregano, 1/4 teaspoon thyme, 1/4 teaspoon basil, and 1/2 teaspoon garlic powder in a large resealable bag along with the tuna fillets. Seal the bag, massage the fillets to rub in the seasonings and distribute all the ingredients. Chill for 15 minutes while you move on to the next step. 
  2. In a large bowl combine potatoes and remaining 2 tablespoons olive oil and toss to coat. Stir together remaining salt, pepper, oregano, thyme, basil, and garlic powder, sprinkle over potatoes and stir to combine. Arrange potatoes on half of a greased sheet pan.  Bake for 15 minutes.
  3. After 15 minutes, place tuna fillets on the empty half of the sheet pan (add lemon slices if desired), sprinkle parmesan cheese over the potatoes, and return to the oven for 6 minutes. Flip the tuna fillets, and cook for another 6 minutes. Serve and enjoy!

Notes

  • For added color, broil at the very end for 1-2 minutes. Garnish with fresh herbs. 

Nutrition Information

Calories 584kcal (29%) Carbohydrates 30g (10%) Protein 45g (90%) Fat 31g (48%) Saturated Fat 6g (30%) Cholesterol 69mg (23%) Sodium 153mg (6%) Potassium 1154mg (33%) Fiber 4g (16%) Sugar 1g (2%) Vitamin A 3759IU (75%) Vitamin C 34mg (38%) Calcium 91mg (9%) Iron 3mg (17%)

Nutrition Facts

Serving: 4servings

Amount Per Serving

Calories 584

% Daily Value*

Calories 584kcal 29%
Carbohydrates 30g 10%
Protein 45g 90%
Fat 31g 48%
Saturated Fat 6g 30%
Cholesterol 69mg 23%
Sodium 153mg 6%
Potassium 1154mg 25%
Fiber 4g 16%
Sugar 1g 2%
Vitamin A 3759IU 75%
Vitamin C 34mg 38%
Calcium 91mg 9%
Iron 3mg 17%

* Percent Daily Values are based on a 2,000 calorie diet.