Preheat the oven to 400°F (200°C) and line a baking sheet with parchment paper.
Cut the salmon fillet into bite-sized cubes and season with salt and pepper.
In a bowl, mix the panko breadcrumbs with garlic powder, then coat the salmon pieces in the breadcrumbs.
Place the salmon bites on the prepared baking sheet and bake for 15-18 minutes, or until the salmon is cooked through and the panko is golden brown and crispy.
In a separate bowl, combine the mayonnaise, sriracha, honey, and soy sauce to make the Bang Bang sauce. Adjust the level of sriracha based on your spice preference.
Prepare the rice according to package instructions or using a rice cooker.
To assemble the bowls, divide the cooked rice among four bowls. Top with the baked salmon bites, a mixture of fresh vegetables, and drizzle generously with the Bang Bang sauce.
Garnish with sliced green onions and sesame seeds if desired.