Sesame-crusted ahi tuna with soy ginger lime sauce is a healthy and very simple dish to make! Pickled cucumbers add a sweet and tangy crunch with each bite.
Combine vinegar, water, sugar, salt, and chili flakes in a medium saucepan and bring to a boil over high heat.
Remove from heat. Add cucumber slices and stir.
Let it rest for 10 minutes, then transfer cucumber to a sealable container and refrigerate until ready to use.
Soy Ginger Lime Sauce
Whisk together all soy ginger lime sauce ingredients together in a small bowl. Set aside until ready to serve.
Tuna
Place sesame seeds on a plate. Pat dry the tuna steaks with a paper towel to remove excess water.
Dredge and press tuna in sesame seeds, coating evenly. Sprinkle with more seeds as needed.
In a medium frying pan over medium-high heat, warm the oil until just smoking.
Frying two portions at a time, arrange the tuna steaks in the pan (do not overcrowd) and cook until the sesame seeds start to turn golden underneath, about 1 minute.
Turn the tuna over and cook for 1 minute.
Sear the edges of the tuna for 15 seconds on each edge.
Transfer the tuna to a plate with a paper towel, gently patting to soak up any excess oil. Repeat with remaining tuna portions.
Transfer tuna to a cutting board and cut ΒΌ-inch thick slices.
Arrange tuna on individual serving plates or bowls. Serve with pickled cucumbers and soy ginger lime sauce.