Cook your shiitakes: I baked mine in the oven - slice and toss with a good glug of olive oil and some salt. Bake in a 350 degree oven until crisp and slightly charred (about 25 minutes). Alternatively, you could cook them down in a pan with a little bit of oil & salt or soy sauce, about 10-15 minutes. Stir only occasionally.
Cook the noodles according to package directions. Drain and rinse in cold water.
Place the noodles in a large bowl and toss with the kale, cabbage, carrots, radishes, shiitakes, and toss with most of the dressing. (Let it all sit and marinate for a while while you clean up the kitchen).
Add sesame seeds, then taste and adjust. Add more dressing, soy sauce, lime and/or sriracha to your liking. Serve chilled or at room temp. Store leftovers in the fridge. Pack in to-go containers and bring to work.
Notes
Prep your kale by drizzling it with a little bit of olive oil and a few good pinches of salt. Massage it well with a your hands until it wilts down quite a bit. (If you make kale salads, you're already familiar with the method). The leaves will become softer and less raw tasting.If you're not a fan of raw tofu you can bake it, pan sear it, or just buy the kind from the store that's already baked.