Tuna Steaks with Creamy Mustard Sauce

Total Time
28 min
12 min
16 min
Pan-searing nicely chars the outside of the tuna steaks, which we cook rare to medium-rare with a little red still in the center.


Worcestershire sauce

1 tsp

Dijon mustard

1 tsp, whole-grain

table salt

¼ tsp

uncooked yellowfin tuna

20 oz, 4 yellowfin tuna steaks, 3/4-inch thick

olive oil

2 tsp

uncooked scallion(s)

3 medium, sliced

garlic clove(s)

1 medium clove(s), minced

reduced-sodium chicken broth

½ cup(s)


1 tsp

fat-free half-and-half

3 Tbsp


fl oz, (optional)


  1. Combine the Worcestershire sauce, mustard, and salt in the bottom of a shallow dish. Add the tuna, turning to coat both sides; let stand 5 minutes to marinate.
  2. Heat 1 teaspoon of the oil in a large nonstick skillet over medium heat. Add tuna and cook until golden on the outside but still a little red in the center, 2-3 minutes on each side. Transfer 2 of the tuna steaks to a plate to cool, then cover and refrigerate for up to 2 days for later use. Transfer the 2 remaining tuna steaks to 2 serving plates; cover lightly with a foil tent and keep warm.
  3. Heat the remaining 1 teaspoon oil in the same skillet. Add the scallions and garlic; cook, stirring constantly, until fragrant, about 1 minute. Add the broth and bring to a boil. Reduce the heat and simmer, uncovered, until the mixture is reduced by about one-third, about 2 minutes.
  4. Dissolve the cornstarch in the half-and-half in a small bowl. Stir into the broth mixture in the skillet. Cook, stirring constantly, until the sauce simmers and thickens. Remove the foil from the 2 reserved tuna steaks; pour the sauce over the tuna. Yields 1 tuna steak and 3 tablespoons sauce per serving.


If you prefer your tuna well done, simply increase the cooking time. Serve each portion with 1/2 cup of hot cooked egg noodles (will increase the SmartPoints value) and a cup of steamed broccoli florets.

A happier, healthier you starts here