Prepare the beef, soybean sprouts, and vegetables.
Mix beef with soy sauce, sugar, minced garlic, sesame oil, and other seasonings.
Add cooking oil to a pan and stir-fry the seasoned beef.
When the beef is halfway cooked, add soybean sprouts and vegetables, and stir-fry quickly over high heat.
Season with salt and pepper.
Transfer to a plate and finish with a sprinkle of sesame seeds.