How to Make It
Preheat the broiler. Spray the mushroom caps with vegetable oil cooking spray, season with salt and pepper and broil 6 inches from the heat, turning the caps once, until lightly browned and tender, about 6 minutes. Let cool, then thinly slice the mushrooms.
In a small bowl, stir the sugar into the soy sauce and mirin until dissolved.
In a large saucepan of boiling water, cook the soba noodles, stirring once or twice, until just tender, about 8 minutes. Drain the noodles, rinse under cold water and drain again thoroughly. Add the boiling water and instant dashi to the saucepan. Add the tofu and shiitake and simmer just until heated through, about 2 minutes. Add the spinach. Transfer the soba to 4 deep bowls and spoon the dashi mixture on top. Garnish the soba with the daikon, scallion and nori and serve right away, passing the soy sauce mixture alongside.
One Serving 328 calories, 3 gm total fat, 0.1 gm saturated fat, 64 gm carb.
Most Japanese products are now available at large supermarkets, health food stores and Asian markets. Look for soba noodles with a high percentage of buckwheat.