Mix together the orange zest and juice, soy sauce and sesame oil and set aside.
Blanch the broccoli in boiling water for 2 minutes, then drain well and set aside.
Finely shred the ginger. Then heat a large frying pan or wok, add the sunflower oil, heat it until sizzling, and fry the ginger till it's crisp.
When it's done, remove with a slotted spoon. Add the beef and garlic, and stir-fry until just browned. Remove the meat using a slotted spoon and set aside.
Add the red pepper and broccoli and stir-fry for around 2-3 minutes until it's just tender. Add the soy sauce mixture, bring it to the boil then return the beef to the pan and heat through. Serve with noodles.
For top tips on protecting you and your family when preparing raw meat and poultry, visit Food Safety in the Home and view the full Food safety at home video.