Make the wasabi cream cheese:
In a small bowl, mix the cream cheese with the wasabi paste until smooth. Taste and adjust the heat level to your liking.
Prepare the soy-honey drizzle:
Add the soy sauce and honey to a small saucepan. Bring to a boil, then lower the heat and let it simmer for about 3–5 minutes until slightly syrupy. It will thicken more as it cools.
Toast the bagels:
Toast the halved bagels until golden and crisp.
Assemble the bagels:
Spread a generous layer of wasabi cream cheese on the toasted bagel halves. Top with sliced avocado, smoked salmon or trout, and pickled ginger. Sprinkle with sliced spring onions and a pinch of Togarashi if using.
Finish and serve:
Drizzle with the soy-honey reduction and serve immediately with a spritz of lime.