01 - Preheat oven to 400°F. Position the rack in the center.
02 - In a small bowl, whisk together the white miso paste, maple syrup, soy sauce, rice vinegar, toasted sesame oil, freshly grated ginger, and minced garlic until smooth and well combined.
03 - Pat the salmon fillets dry with paper towels. Brush the flesh side generously with the miso maple glaze, reserving some for a second coat.
04 - Heat olive oil in an oven-safe skillet over medium-high heat. Place salmon fillets skin-side down and sear for 2 to 3 minutes until the skin turns golden and crispy.
05 - Flip the fillets, brush with additional glaze, and transfer the skillet directly into the oven. Roast for 7 to 9 minutes until the salmon is cooked through and the glaze has caramelized.
06 - While the salmon roasts, combine the thinly sliced cucumbers, julienned carrot, and sliced spring onions in a large mixing bowl.
07 - In a separate small bowl, whisk together the rice vinegar, sesame oil, toasted sesame seeds, soy sauce, honey if using, and a pinch of sea salt. Pour the dressing over the vegetables and toss gently to coat evenly.
08 - Arrange the sesame cucumber slaw on plates and place a salmon fillet on top or alongside. Garnish with fresh cilantro leaves, extra sesame seeds, and lime wedges. Serve immediately.