In a wok, heat up oil, onion and garlic on high heat. Add meat and stir till mostly cooked.
Add carrot, bamboo, water chestnuts, mushroom, Thai/chili peppers, and season with oyster sauce, soy sauce, salt, and MSG. Stir as each vegetable is added in the wok, and simmer while occasionally stirring for about 5min.
Add bell pepper and snow peas last, stir and simmer for another 3min. Turn the heat off, garish with parsley, and serve on platter. Enjoy! (Feel free to add or substitute other vegetables as desired).