01 - Combine rice vinegar, sugar, and salt in a bowl. Add carrots, cucumber, and radishes. Toss to coat and let sit for at least 20 minutes, stirring occasionally to evenly distribute flavors.
02 - Rinse jasmine rice until water runs clear. Combine rice, water, and salt in a saucepan. Bring to a boil, cover, reduce to low heat, and simmer for 15 minutes. Remove from heat and let stand, covered, for 5 minutes. Fluff with a fork before serving.
03 - Whisk together soy sauce, mirin, honey or maple syrup, rice vinegar, sesame oil, ginger, and garlic in a small bowl until fully incorporated.
04 - Place salmon fillets in a shallow dish or resealable bag. Pour half of the marinade over the fish, ensuring even coating. Marinate for 10 to 30 minutes in the refrigerator. Reserve the remaining marinade for sauce.
05 - Preheat oven to 400°F or heat a nonstick skillet over medium heat. Remove salmon from marinade and place on a foil-lined baking sheet or in the skillet. Bake for 10–12 minutes or pan-fry until salmon is just cooked through and flakes easily with a fork.
06 - Pour reserved marinade into a small saucepan. Bring to a simmer over medium heat. If thicker sauce is desired, mix cornstarch with 1 tablespoon water and stir into the simmering liquid. Cook for 2–3 minutes until glossy and slightly thickened.
07 - Combine mayonnaise, sriracha, and lime juice in a small bowl. Mix until smooth and evenly blended. Adjust sriracha amount to preferred spice level.
08 - Divide cooked rice among four serving bowls. Arrange salmon, drained pickled vegetables, avocado slices, scallions, sesame seeds, cilantro, and nori strips on top. Drizzle with teriyaki glaze and sriracha mayo. Serve immediately.