Preheat oven to 350⁰ F. Grate ginger and press garlic.
Combine, soy sauce, rice wine vinegar, honey, sesame oil, olive oil, ginger and garlic in small bowl. Mix well.
Season salmon with salt and pepper and orange zest (if using). Place salmon, Bok choy and mushrooms on a sheet pan. Spoon marinade over salmon and vegetables.
Bake for 10 minutes, then check for desired temperature, and bake more as necessary, the Bok choy should still be crisp but nice and green. Remove salmon to a small pan and broil for 3-4 minutes.
Sprinkle with toasted sesame seeds, scallions,and chili flakes or sriracha for heat.