Heat wok or large skillet over medium high heat. Brown meat and season with salt and pepper. Add onion, sesame oil, and rice vinegar to skillet. Cook until onion is tender. Add garlic, ginger, soy sauce, hoisin sauce, cabbage, and carrots to the skillet. Cook, stirring occasionally, for 5-7 minutes more or until cabbage is wilted.
Lots of vegetables work well with this recipe - sliced red peppers, mushrooms, bean sprouts (rinsed and drained if using canned), etc.