thin udon noodles (Kanto-style) • egg • white or cremini mushrooms • small king oyster mushroom • –2.1 oz ground meat (about 50–60 grams) • Chopped onion, • Black pepper, to taste • ketchup (about 40 grams) • Worcestershire sauce (about 20 grams) • soy sauce (about 10 grams) • sugar • mushroom bouillon powder •