Peel and thinly slice the carrots. Take the ends off the green bean and slice them at a diagonal.
Cut the pork into bite-sized pieces and mix in a bowl with garlic, ginger, shoyu, salt, and cornstarch. This will all flavor the pork and allow a fine crust to form as it cooks on the pan.
Add about 2 tbsp of olive oil to the pan and adjust the temperature to high. Add the pork and cook until brown.
Add the carrots and cook for about 30 seconds.
Add the green beans. If these are very fresh, they'll be extremely tender, which is why they'll go in last. Cook for 2 minutes.
Add pepper and salt to taste (Mom put in about 1 tsp each). Add shoyu and cook for 30 seconds. Turn off the stove and add sesame seed oil. Mix one more time and serve.