There’s nothing quite like the first bite of a perfectly grilled tuna steak, especially when it’s encrusted with a delightful layer of sesame seeds that add both texture and flavor. Recently, while enjoying a breezy summer evening on my patio, I found myself craving something light yet satisfying. That’s when I decided to whip up these Grilled Sesame-Crusted Tuna Steaks, a dish that not only tantalizes the taste buds but also welcomes the warmth of the season.
The combination of low-sodium soy sauce, zesty lemon juice, and a hint of ginger creates a marinade that elevates the humble tuna to a whole new level. Marinating for just half an hour before grilling ensures the steaks soak up all those beautiful flavors. In less than 40 minutes, you can serve a meal that impresses friends, family, and your own sense of culinary adventure.
Whether you’re looking to impress at a dinner party or simply seeking a nutritious alternative to fast food, these tuna steaks are your answer. Come along as I guide you through this easy yet exquisite recipe that’s sure to become a favorite in your kitchen!

Why are Grilled Sesame-Crusted Tuna Steaks a Must-Try?
Bursting with flavor: The marinade blends soy sauce, ginger, and lemon for a taste explosion!
Quick cooking: Ready in under 40 minutes, perfect for busy weeknights or last-minute gatherings.
Show-stopping presentation: The sesame crust not only tastes great but looks beautifully impressive on your plate.
Healthy choice: Packed with protein and omega-3s, these steaks are guilt-free and nourishing.
Versatile dish: Serve them as a main course, atop a salad, or paired with grains for a complete meal.
Grilled Sesame-Crusted Tuna Steaks Ingredients
For the Marinade
- Low-sodium soy sauce – adds depth of flavor while keeping the dish healthier.
- Chopped scallions – bring a fresh, mild onion flavor that brightens the marinade.
- Fresh lemon juice – enhances the marinade with a zesty twist for balance.
- Sesame oil – contributes a rich, nutty essence that pairs beautifully with the tuna.
- Freshly grated ginger – adds a warming spice that complements the soy sauce.
For the Tuna Steaks
- Tuna steaks – the star of the show, providing a rich and meaty texture.
- Sesame seeds – coat the tuna for a crunchy crust that adds flavor and visual appeal.
For the Cornstarch Mixture
- Cornstarch – helps the marinade thicken and ensures the sesame seeds adhere well.
- Water – brings the cornstarch to the right consistency for easy mixing.
With these Grilled Sesame-Crusted Tuna Steaks ingredients, you’re on your way to creating a delightful meal that’s bursting with flavor and perfect for any occasion!
How to Make Grilled Sesame-Crusted Tuna Steaks
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Mix the Marinade: In a bowl, combine the low-sodium soy sauce, chopped scallions, fresh lemon juice, sesame oil, and grated ginger. Whisk until well mixed and fragrant, setting the stage for an incredible flavor experience.
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Marinate the Tuna: Place the tuna steaks in a shallow dish and pour the marinade over them. Let them soak up those beautiful flavors for 30 minutes, ensuring they become deliciously infused!
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Prepare the Cornstarch Mixture: In a small cup, mix the cornstarch and water until smooth. This will help the marinade thicken and adhere to the tuna steaks nicely. Add this mixture back to the marinade, stirring well.
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Toast the Sesame Seeds: Heat a skillet over medium heat and add the sesame seeds. Toast them for 2-3 minutes until golden and fragrant, shaking the pan occasionally to ensure even toasting.
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Coat the Tuna Steaks: Remove the tuna steaks from the marinade, allowing any excess to drip off. Roll them in the toasted sesame seeds until fully coated, creating a delicious crust that will enhance every bite!
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Cook the Tuna Steaks: Heat the same skillet over medium-high heat and cook the tuna steaks for about 3-4 minutes on each side. They’re ready when they’re perfectly seared on the outside, while remaining pink and tender on the inside.
Optional: Serve with a drizzle of extra marinade for added flavor!
Exact quantities are listed in the recipe card below.

Grilled Sesame-Crusted Tuna Steaks Variations
Feel free to let your culinary creativity shine by customizing these grilled tuna steaks!
- Spicy Kick: Add red pepper flakes or sriracha to the marinade for an extra kick that will wake up your taste buds.
- Citrus Twist: Replace lemon juice with lime or orange juice to give the tuna a refreshing fruity flavor.
- Herb Infusion: Mix in fresh herbs, like cilantro or basil, to the marinade for a burst of color and an aromatic touch.
- Nutty Flavor: Blend in chopped peanuts or cashews into the sesame seed coating to introduce an additional layer of crunch and richness.
- Sweet Glaze: Drizzle honey or maple syrup into the marinade for a delightful sweet contrast against the savory flavors.
- Vegetable Medley: Grill zucchini, bell peppers, or asparagus alongside the tuna steaks for a colorful and nutritious platter.
- Sesame Oil Swap: Use flavored oils, like garlic or chili oil, to replace sesame oil for a unique twist on the traditional flavor profile.
- Grain Base: Serve the tuna on a bed of quinoa or brown rice for a hearty satisfying meal that combines textures beautifully.
What to Serve with Grilled Sesame-Crusted Tuna Steaks?
Creating a memorable meal means crafting delightful pairings that enhance every bite of your tuna steaks.
- Creamy Mashed Potatoes: Their velvety texture and buttery flavor provide a comforting contrast to the savory tuna.
- Zesty Cucumber Salad: Refreshing and light, this salad brings a crunchy, bright bite that harmonizes beautifully with the tuna’s umami.
- Garlic Stir-Fried Broccolini: The slight bitterness of broccolini and its garlicky goodness complements the rich flavors of the sesame tuna.
- Quinoa Pilaf: Nutty and wholesome, quinoa adds a nutty flavor that mirrors the sesame seeds, making for a nutritious companion.
- Miso Soup: Warm and comforting, miso soup enhances the Asian flavor profile, creating a lovely appetizer before the main course.
- Sushi Rice: Serve the tuna atop sushi rice, drizzled with a hint of extra marinade for a sushi-inspired twist that delights the palate.
- Sparkling Sake: The effervescence of sparkling sake refreshes the palate, making it a fitting drink to enjoy with flavorful tuna.
- Fresh Berries: A light dessert, fresh berries like strawberries or blueberries provide a sweet touch to finish the meal on a bright note.
Make Ahead Options
These Grilled Sesame-Crusted Tuna Steaks are perfect for meal prep enthusiasts looking to save time! You can prepare the marinade (soy sauce, scallions, lemon juice, sesame oil, and ginger) up to 3 days in advance; just refrigerate it in an airtight container. Additionally, you can marinate the tuna steaks for up to 24 hours ahead of time, ensuring they soak in all those flavors. When you’re ready to cook, toast the sesame seeds just before coating the tuna for the freshest taste. Simply follow the final steps of coating and cooking the tuna steaks, and you’ll enjoy a delicious restaurant-quality meal with minimal effort on busy weeknights!
How to Store and Freeze Grilled Sesame-Crusted Tuna Steaks
Fridge: Store leftover tuna steaks in an airtight container in the refrigerator for up to 3 days. This helps retain their flavors and textures for delightful meals later.
Freezer: For longer storage, freeze the cooked tuna steaks wrapped tightly in plastic wrap and then in foil for up to 2 months. Allow them to thaw overnight in the fridge before reheating.
Reheating: To reheat, place the tuna steaks in a skillet over medium heat for about 2-3 minutes per side, ensuring they’re warmed through but not overcooked. Enjoy them just like your original Grilled Sesame-Crusted Tuna Steaks!
Tips for the Best Grilled Sesame-Crusted Tuna Steaks
- Marinade Time: Allow at least 30 minutes for marinating; this ensures the flavors penetrate the tuna steaks deeply, enhancing the dish.
- Toasting Seeds: Don’t rush toasting the sesame seeds; a steady medium heat creates a fragrant, golden coating that brings out their nuttiness.
- Cooking Time: Be cautious not to overcook the tuna. Aim for 3-4 minutes per side for a beautiful sear while keeping the inside tender and pink.
- Fresh Ingredients: Use fresh ginger and scallions for a more vibrant flavor profile in your Grilled Sesame-Crusted Tuna Steaks—freshness makes a notable difference!
- Experiment with Sauces: Feel free to serve with additional sauces or dips; a spicy mayo or citrus vinaigrette can elevate your dish further!

Grilled Sesame-Crusted Tuna Steaks Recipe FAQs
How do I select the best tuna steaks?
When choosing tuna steaks, look for vibrant, deep red or pink color without dark spots or discoloration. Freshness is key, so ask your fishmonger if they were recently caught. Ideally, they should be firm to the touch and free from any fishy odor. Always opt for sushi-grade tuna if you plan to serve it rare.
How should I store leftover grilled tuna steaks?
Store any leftover grilled sesame-crusted tuna steaks in an airtight container in the refrigerator for up to 3 days. Make sure they are completely cooled before placing them in the container to avoid condensation, which can make them soggy.
Can I freeze the grilled tuna steaks?
Absolutely! You can freeze cooked tuna steaks for up to 2 months. To do this, wrap each steak tightly in plastic wrap, then place them in a freezer-safe bag or container. When you’re ready to enjoy them again, thaw the steaks overnight in the refrigerator and reheat gently to avoid overcooking.
What should I do if the marinade is too salty?
If you find your marinade too salty, consider adding a dash of water or lemon juice to dilute it. Additionally, you can soak the tuna steaks in fresh water for about 10 minutes before marinating to help reduce the saltiness. Just make sure to dry them well afterward!
Can pets eat cooked tuna steaks?
While cooked tuna can be safe for pets in moderation, it’s important to ensure there are no seasonings or additives. Always consult your veterinarian before introducing new foods into your pet’s diet, and serve plain, unseasoned tuna if you want to share a bite with your furry friend!
How do I know when the tuna steaks are cooked perfectly?
For perfectly cooked tuna steaks, aim for about 3-4 minutes per side in a medium-high skillet. You’ll know they’re done when the outside is nicely seared, while the inside remains pink and tender. For those who prefer a rare finish, the internal temperature should read about 125°F (51°C). Enjoy your Grilled Sesame-Crusted Tuna Steaks just the way you like them!

Grilled Sesame-Crusted Tuna Steaks for a Flavorful Feast
Ingredients
Equipment
Method
- In a bowl, combine the low-sodium soy sauce, chopped scallions, fresh lemon juice, sesame oil, and grated ginger. Whisk until well mixed and fragrant.
- Place the tuna steaks in a shallow dish and pour the marinade over them. Let them soak up those beautiful flavors for 30 minutes.
- In a small cup, mix the cornstarch and water until smooth. Stir this mixture back into the marinade.
- Heat a skillet over medium heat and toast the sesame seeds for 2-3 minutes until golden and fragrant.
- Remove the tuna steaks from the marinade and roll them in the toasted sesame seeds until fully coated.
- Cook the tuna steaks in the skillet over medium-high heat for about 3-4 minutes on each side until perfectly seared and pink inside.




