Fried rice with spiced beef

4 tbsp olive oil

100g cooked spiced beef, sliced thinly 

½ onion, thinly sliced 

1 thumb of ginger, peeled and grated 

1 tbsp of sambal oelek (chilli sauce) 

handful of salted, roasted cashews, roughly chopped 

1 egg, beaten 

300g cooked rice, cooled

sea salt

black pepper 

soy sauce, to taste