Gently whisk soy sauce, ginger, sugar, garlic and pepper in a small bowl. Set aside.
2 tablespoons soy sauce
1 teaspoon fresh ginger
1/2 tablespoon brown sugar
1 large garlic clove
1 pinch white pepper
In a medium pot, bring 1 quart of unsalted water to boil.
Meanwhile, over medium heat, add olive oil to a small pan. When hot, add onion and celery and cook for several minutes or until softened. Add the cabbage and cook another minute then turn off the heat.
1 tablespoon olive oil
1/3 cup yellow onion
2 small celery stalks
1 cup shredded cabbage
Add yakisoba noodles to boiling water for 2 minutes, separating the noodles. Drain then add hot noodles to pan of cabbage, onion and celery. Pour soy sauce mix over all and and mix until all noodles are coated. Serve hot.