Let's cook.
In a small bowl, whisk together the miso paste, soy sauce, mirin, and water until smooth. Set aside.
Heat sesame oil in a large skillet or wok over medium-high heat. Add chicken pieces and cook for 5-7 minutes, stirring occasionally, until browned and cooked through.
Add minced garlic and grated ginger to the skillet. Stir-fry for 1 minute until fragrant.
Add the thinly sliced cabbage to the skillet. Cook for 3-5 minutes, stirring frequently, until the cabbage begins to soften but still retains some crispness.
Pour the prepared miso sauce over the chicken and cabbage. Stir well to coat everything evenly.
Continue to cook for 1-2 minutes, allowing the sauce to thicken slightly and coat the ingredients. Serve immediately.
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