Blackened Tuna Tacos with Sesame Salad

First, prepare the blackening seasoning by combining salt, pepper, chili powder, ground coriander, dried oregano, and paprika. Roll the tuna pieces thoroughly in this seasoning blend. Heat avocado oil in a pan over high heat. Sear the seasoned tuna for about 30 seconds to 1 minute per side until golden brown, then transfer to a plate and set aside. Next, prepare the sesame salad by combining chopped greens, thinly sliced red onion, and toasted sesame seeds in a bowl. Drizzle with avocado oil and toasted sesame oil and toss to combine. To assemble the tacos, warm the tortillas. Place the blackened tuna into the warmed tortillas, top with the sesame salad, fresh mint, cilantro, sliced jalapeño, a splash of sriracha, and a squeeze of fresh lime juice. Serve immediately and enjoy!