Prepare slaw by combining vinegar, orange zest and orange juice, fresh ginger and half the seasoning packet of Asian Soy Ginger flavoring. Add the cabbage and toss well. Refrigerate until ready to serve.
Bake fish 15 minutes on one side. Remove from oven, flip fish over and sprinkle with the Orange Sesame packet. Return to oven and bake 10 minutes longer.
Once fish has finished cooking, allow to rest for 5 minutes. Slice the fillets into small strips. Place on top of warmed tortillas, top with slaw, chopped cilantro and Sriracha if desired.