Over medium heat, saute garlic in a wok or large skillet until light brown.
Add onions and saute until translucent.
Add ground pork and saute for 3 minutes or until there are no more red parts showing.
Season with about 1/2 tsp salt and 1/8 tsp freshly ground pepper. Mix well.
Cover and cook for about 5 minutes or until pork is tender.
Remove cover and add the cabbage and carrots. Stir until combined well.
Add fish sauce and oyster sauce. Continue stirring until well distributed.
Cover and simmer for about 3 minutes. Season with salt and pepper to suit your taste.
Add tofu and green onions. Mix until well incorporated with other ingredients.
Remove from heat and serve with steamed rice.