1. In a wok or fry pan, heat 1 tbsp vegetable oil over high heat and then add garlic and ginger. Fry them until they are fragrant. Add the ground beef and cook until slightly browned, breaking up any large chunks.
2. Add all the ingredients A over the beef and fry. Fry them about 1 to 2 mins to combine evenly.
3. Add green bell pepper and coriander, continue stir-frying for another 30 seconds.
4. Serve over rice, garnished with some sesame seeds, if desired.