Clean the mung bean sprouts, remove and control the moisture; Slice lean pork. Heat oil in a pan, add chopped green onion and stir-fry until the meat slices change color, add mung bean sprouts and add a little salt. Stir-fry the fire for a minute, then turn off the heat. Add a little monosodium glutamate to taste before cooking, and this crispy and delicious mung bean sprout fried meat is ready.