Tuna Steak Recipe -- an Easy Healthy Recipe


This low carb tuna steak recipe is a Paleo easy healthy recipe.

The marinated steaks can be baked, broiled or grilled.

Use equal amounts of the herbs according to taste. Add more if you wish.

You can substitute other herbs if preferred. In so far as possible, use organic herbs and seasonings.

Add some green salad or green vegetables such as kale, spinach or broccoli and this is a healthy low carb meal.

Tuna steak recipe: ingredients

  • 2 six oz (uncooked) yellowfin tuna steaks (sashimi grade)
  • ½ teaspoon oregano flakes
  • ½ teaspoon marjoram flakes
  • ½ teaspoon rosemary flakes
  • ½ teaspoon thyme flakes
  • if on a Paleo diet use freshly squeezed lemon or lime juice
  • if not on a Paleo diet use balsamic vinegar if preferred
  • sea salt
  • freshly ground black pepper


This low carb Paleo recipe yields two servings. Simply increase or decrease the ingredients if more or fewer servings are required.



Tuna steak recipe: method

These low carb Paleo tuna steaks can be baked, broiled or grilled.

Before we move on with the Paleo tuna steak recipe method, in case you have use of it, here is a general Oven Temperature Conversion Chart. It gives conversions for Fahrenheit, Celsius, Gas Mark, and Terms Used. Print it out if you wish and use for reference whenever needed.


Oven Temperature Conversion Chart


Fahrenheit Celsius Gas Mark Terms Used
275 degrees °F 140 degrees °C 1 This is for very slow cool cooking
300 degrees °F 150 degrees °C 2 This is for slow cool cooking
325 degrees °F 165 degrees °C 3 This is warm cooking
350 degrees °F 177 degrees °C 4 This is moderate heat cooking
375 degrees °F 190 degrees °C 5 This is moderate heat cooking
400 degrees °F 200 degrees °C 6 This is moderately hot cooking
425 degrees °F 220 degrees °C 7 This is hot cooking
450 degrees °F 230 degrees °C 8 This is hot cooking
475 degrees °F 245 degrees °C 9 This is hot cooking
500 degrees °F 260 degrees °C 10 This is for very hot cooking


Here's a simple, delicious way to oven bake the tuna.


(a) Thaw the tuna fish if frozen.

(b) Preheat the oven to 400°F [or use the conversion temperature chart above.]

(c) Rinse the tuna steak with water and pat dry with paper towels.

(d) Prepare a seasoning mix by mixing together equal parts of oregano flakes, marjoram flakes, rosemary flakes, and thyme flakes. Substitute other herbs if preferred.

(e) Cover the bottom of a baking dish with freshly squeezed lime or lemon juice if following a Paleo diet, if not following a Paleo diet you may use balsamic vinegar if preferred.

(f) Stir in the herbs, add the fish and leave to marinate in the refrigerator for 30 minutes or longer (turning the tuna over half way through) to allow the flavors to permeate the other side of the fish.

(g) Put the baking dish on a rack in the middle of the oven. Bake for 25 minutes.


When the fish is cooked, season with salt and pepper according to taste.

Approximate food counts for the fish and herbs: 247 calories, 51 grams of protein, 2 grams of fat, and 4 grams of carbs (with 0 grams of fiber.

We hope that you enjoy it!

[Because tuna is a large fish that can become contaminated with mercury, we recommend having no more than one serving of tuna weekly.]


Web pages to help you further

Now that you have the low carb Paleo tuna steak recipe, perhaps you would like another easy healthy recipe. If so see our 'Baked Salmon Recipe.' You will find the link directly below.



Baked Salmon Recipe



Bbooks for low carb and Paleo healthy eating

The books are available at Amazon.com and Amazon.co.uk usually in Kindle and paperback form, and sometimes as hardbacks. If you found the low carb Paleo tuna steak recipe useful, these books are excellent further reading.

  • Cordain's The Paleo Diet Cookbook
  • Solom & the Eades' The Low-Carb Comfort Food Cookbook
  • Julie & Charles Mayfield's Paleo Comfort Foods.

On most pages of our website, we aim to recommend the very best books available according to the topic of each page. We endeavor to make the best suggestions based on experience and our many years of work and research in the fields of health and fitness. We suggest only books that we have read and can wholly commend.






A link to the external video, for those who might want to save it.


This completes the low carb Paleo tuna steak recipe. This is a Paleo easy healthy recipe. We do hope that you enjoy the finished product!





› Low Carb Tuna Steak


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