Mix the soy sauce, sugar, cornstarch and ginger with a whisk (or fork if you don’t have a whisk) and then add in your steak and let it marinate. Heat a large non-stick pan (or Wok) to medium-high heat and add in vegetable oil.
Add in your steak and cook for about 3-5 minutes then remove from pan into a bowl.
Add in your onion and bell pepper and cook for about 7-10 mins or until the bell pepper is cooked enough for you. *I like my bell pepper to have a crunch so I don’t cook mine very long.
Add back in your steak and black pepper and cook for 3 minutes, plate and serve! *I did not add in any additional salt but if you think you need more feel free to add.