Thai Beef Stir Fry

This Thai Beef Stir Fry is a quick, vibrant dish packed with tender strips of marinated beef, crisp vegetables, and a savoury, glossy sauce. Red bell peppers, scallions, mange tout, and toasted sesame seeds bring colour, crunch, and authentic Thai flair. Perfect for busy weeknights, this dish delivers big flavour with minimal effort.

Prep Time 15

Cook Time 10

Total Time 25

Servings People

Ingredients

For the Beef & Marinade:

250 g lean beef steak sirloin or rump sliced thinly across the grain
2 tbsp soy sauce
1 tsp brown sugar or honey
1 clove garlic finely grated
½ tsp chilli flakes
1 tsp sesame oil

For the Stir Fry:

1 tbsp vegetable oil or sesame oil for cooking
1 medium red bell pepper sliced into thin strips
2 large spring onions scallions sliced
100 g mange tout snow peas
2 cloves garlic finely chopped
1 tbsp sesame seeds toasted
Fresh coriander Thai basil

For the Sauce:

1½ tbsp soy sauce
1 tbsp oyster sauce
1 tsp sesame oil
½ tsp sugar
2 tbsp water
1 tsp cornflour mixed with
1 tbsp water

Instructions

In a bowl, combine sliced beef with soy sauce, brown sugar, grated garlic, chilli flakes (if using) and sesame oil.
250 g lean beef steak, 2 tbsp soy sauce, 1 tsp brown sugar, 1 clove garlic, ½ tsp chilli flakes, 1 tsp sesame oil
Toss well and let it marinate for at least 30 minutes while you prepare the vegetables and sauce.
In a small bowl, mix together soy sauce, oyster sauce, sesame oil, sugar and water. Set aside.
1½ tbsp soy sauce, 1 tbsp oyster sauce, 1 tsp sesame oil, ½ tsp sugar, 2 tbsp water
Heat the oil in a large wok or frying pan over high heat.
1 tbsp vegetable oil
Add the marinated beef and stir fry for 2-3 minutes until just browned. Remove and set aside.
In the same pan, add a little more oil if needed, then toss in the chopped garlic and sliced bell pepper. Stir fry for 2 minutes.
2 cloves garlic, 1 medium red bell pepper
Add the mange tout and spring onions, cook for another minute.
2 large spring onions, 100 g mange tout
Return the beef to the pan, pour over the sauce, and toss everything together for 1-2 minutes until heated through. If you prefer a thicker sauce, add the cornflour mixture now and stir for another minute.
1 tsp cornflour, 1 tbsp water
Sprinkle with toasted sesame seeds and garnish with fresh coriander or Thai basil if desired. Serve immediately with steamed jasmine rice or noodles.
1 tbsp sesame seeds, Fresh coriander

Notes

Enjoy your quick, colourful Thai Beef Stir Fry with fluffy rice or noodles for a satisfying, flavour-packed meal!

Nutrition