The vegetables? That's boiled new potatoes, and thinly sliced fennel and scallions. A little parsley waits on the side.
Right, that's a fennel bulb. Just cut off the stalks, halve it, pare out a central core which you will see, and the rest is fully edible raw or cooked. The teriyaki glaze is simply about 3T each brown sugar, sake or water, and soy sauce, and 1t each fresh garlic and fresh or ground ginger.