Tuna Steak Recipe -- easy healthy recipe


This low carb tuna steak recipe is an 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 prefer. You can substitute other herbs if preferred. In so far as possible, use organic herbs and seasonings.

This low carb recipe yields one serving. Simply increase the ingredients if more servings are required.

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

Low carb tuna steak recipe ingredients


  • 1 six oz (uncooked) yellowfin tuna steaks (sashimi grade)
  • ¼ teaspoon oregano flakes
  • ¼ teaspoon marjoram flakes
  • ¼ teaspoon rosemary flakes
  • ¼ teaspoon thyme flakes
  • balsamic vinegar, or if following the Paleo diet use freshly sqeezed lemon or lime juice rather than vinegar
  • sea salt
  • freshly ground black pepper



Low carb tuna steak recipe method

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

Before we move on with the tuna steak recipe method, in case you have use of one, 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 bake it.

(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 balsamic vinegar, or if following a Paleo diet use freshly squeezed lime or lemon juice, rather than vinegar.

(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.]

Recommended books for this section of the site


Here are some excellent initial book suggestions. All have low carb or Paleo recipes.

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

The books are available from Amazon.com and Amazon.co.uk.




Web pages to help you further

Now you have the low carb tuna fish recipe, perhaps you would like some more fish recipes, or some other type of recipes. If so see the 'Baked Salmon Recipe' or the general 'Weight Loss Recipes' section of our website. You will find the links directly below.


Weight Loss Recipes

Baked Salmon Recipe



Link to the YouTube video for those who might want to save it for their YouTube video list

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



› Low Carb Tuna Steak


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