Meanwhile, mix mayonnaise and wasabiin a small bowl. Stir in half of ginger and halfof garlic; set aside. Season fish all over withsalt and pepper.
Place bok choy, cabbage,and mushrooms in a large bowl.
Drizzle withoil and add remaining ginger and garlic.Toss to coat; season with salt and pepper.
Scatter vegetables across one side ofbaking sheet. Arrange salmon on other side.Roast, stirring vegetables occasionally,until salmon is cooked through, 12-15minutes. Divide vegetables among plates;top with salmon.
Serve wasabi mayonnaisealongside.
Per serving: 476 calories, 31 g fat, 6 g carbohydrates