4 servings (serving size: 1 steak and 2 tablespoons sour cream mixture)

How to Make It

Step 1

Combine first 6 ingredients in a large zip-top plastic bag. Add fish to bag; seal and marinate in refrigerator 1 hour, turning once.

Step 2

Combine sour cream and next 4 ingredients in a small bowl; set aside.

Step 3

Prepare grill.

Step 4

Remove fish from marinade, reserving marinade. Place fish on grill rack coated with cooking spray; grill 6 minutes on each side or until fish is medium-rare or desired degree of doneness, basting frequently with reserved marinade. Serve with sour cream mixture.

Oxmoor House Healthy Eating Collection

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Ratings & Reviews

Excellent Sauce

January 02, 2017
Sauce was excellent, and would be good with beef also.  I used yogurt instead of sour cream because that is what I had. Adjusted the other ingredients to my own tastes, i.e., more horseradish.   I did not bother with the marinade -- just salted the tuna and let it sit for about 1/2 hour to get rid of any fishiness, then rinsed, patted dry, oiled lightly, and grilled.  Delish.

Grilled Tuna Steaks with Horseradish Sauce

June 30, 2015
Best tasting tuna I have ever tasted.  Full of flavor!