01 -
In a small bowl, whisk together soy sauce, vegetarian oyster sauce, mirin, and grated garlic.
02 -
Heat toasted sesame oil in a large skillet over medium-high heat. Add bell peppers, carrot, and onion. Stir often and cook until crisp-tender, about 5 minutes.
03 -
Add frozen udon noodles and 1 cup of water to the skillet. Reduce heat to medium, cover, and cook, stirring occasionally, until noodles are loosened, about 5 to 8 minutes.
04 -
Add shredded cabbage and the prepared sauce mixture. Stir until noodles are evenly coated and cabbage is wilted, about 2 minutes.
05 -
Remove from heat and top with sliced scallions before serving.