It's hard to tell which is better in this, the tuna or the sauce! The sauce is even better if done the previous day, but who knows when you're going to catch a tuna? No kidding, if you can do it, it gets no better. Otherwise, get the freshest you can get from your fish monger.

Recipe Summary

prep:
10 mins
cook:
12 mins
total:
22 mins
Servings:
2
Yield:
2 steaks
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Ingredients

2
Original recipe yields 2 servings
The ingredient list now reflects the servings specified
Ingredient Checklist

Directions

Instructions Checklist
  • Combine the lemon juice with 1/2 cup olive oil in a sealable plastic bag; seal and shake. Add the tuna steaks and store in refrigerator to marinate while the grill preheats.

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  • Preheat an outdoor grill for high heat, and lightly oil the grate.

  • Whisk the brown mustard, mustard powder, sugar, vinegar, and 1/3 cup olive oil together in a bowl; stir in the dill.

  • Remove the tuna from the marinade and discard the marinade; cook the steaks on the preheated grill until the fish flakes easily with a fork, about 6 minutes per side. Drizzle the steaks with the mustard and dill sauce to serve.

Nutrition Facts

687 calories; protein 43.3g 87% DV; carbohydrates 28.5g 9% DV; fat 45.7g 70% DV; cholesterol 77.1mg 26% DV; sodium 464mg 19% DV. Full Nutrition

Reviews (46)

Read More Reviews

Most helpful positive review

Rating: 4 stars
05/07/2010
The marinade is basic at best and I recommend using one w/ some soy and ginger added to the basic EVOO Lemon mixture. Now the dill sauce is simply amazing. 4 stars for the sauce alone. Read More
(18)

Most helpful critical review

Rating: 3 stars
11/09/2010
Nice flavor variation when your favorite tuna recipe is getting stale. I substituted lime for lemon juice - not sure it matters. Next time I make this I will leave out the sugar - really not needed. Read More
(5)
61 Ratings
  • 5 star values: 33
  • 4 star values: 20
  • 3 star values: 7
  • 2 star values: 0
  • 1 star values: 1
Rating: 4 stars
03/10/2009
I enjoyed this recipe. I did not have white wine vinegar, so I used red wine vinegar. Also, I only had 1 tbsp dill. Overall, I thought the recipe was a 4-4.5. My husband didn't like it quite as much and gave it a 3.5-4. I would make it again. I had frozen tuna steaks, so I made them medium well. If I had fresh tuna steaks, I would have done medium rare, which would have improved the overall taste in my opinion. Read More
(18)
Rating: 4 stars
05/07/2010
The marinade is basic at best and I recommend using one w/ some soy and ginger added to the basic EVOO Lemon mixture. Now the dill sauce is simply amazing. 4 stars for the sauce alone. Read More
(18)
Rating: 5 stars
08/03/2009
Made this for dinner tonight and the entire family loved it. Had to make one substitution stone ground mustard for the spicy brown mustard. The marinade is enough for more than 2 tuna steaks I had about 8 and it turned out fine. I will definitely make this again! Read More
(16)
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Rating: 5 stars
07/27/2011
Skipped the mustard powder and used apple cider vinegar in place of white wine vinegar. Outstanding! This was the best sauce I have ever had on fish! In fact this was the best fish meal I've ever made! The boyfriend was thrilled and ate it all and all the leftovers the next day. The sauce was great on the potatoes and couscous we ate with the tuna as well. Broiled my tuna for 6 minutes on each side and it was still pink in the middle but o-so-tasty! Again and again I will crave and cook this! Read More
(10)
Rating: 5 stars
07/27/2009
This recipe was so unexpectedly great. I chose this one over others based on the reviews and I was not let down. I broiled the tuna since I do not have access to a grill and would suggest reducing cooking time. Other than that I wouldn't change a thing. I paired the tuna with boiled baby red potatoes and green beans the dill sauce was a perfect compliment. I am using the left over sauce on a salmon fillet tomorrow evening. I have added this recipe to my stand by cookbook so that I can reference it at a moments notice. Thanks for the great new staple! Read More
(9)
Rating: 5 stars
07/24/2009
This was a superb recipe! I did not have white wine vinegar so used red wine vinegar instead and in place of the white sugar I used an equal amount of Splenda. My husband took one bite and said "wow". Will definitely use again and will also try it on other types of fish. Thanks for a yummy recipe! Read More
(7)
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Rating: 3 stars
11/09/2010
Nice flavor variation when your favorite tuna recipe is getting stale. I substituted lime for lemon juice - not sure it matters. Next time I make this I will leave out the sugar - really not needed. Read More
(5)
Rating: 4 stars
10/23/2009
YUMMY!! I halved the sauce and marinade - it still made plenty. Read More
(5)
Rating: 5 stars
06/09/2011
Wow! Amazing sauce. I served this over a spinach salad with fresh tomatoes and mushrooms and it was fantastic. Light and summery Read More
(4)