Heat some oil in a saucepan over a medium heat. Add the onion and cook for 3 minutes until they start to soften. Add the ginger and cook for 30 secs. Transfer to a bowl
If needed, add some more oil into the same pan and cook the beef for 2-3 minutes or until browned. Return the onion mixture to the pan. Add curry powder and stir to coat
Add the coconut milk, cover and cook for 30 minutes
Add the mushrooms and cauliflower and cook for a further 20 minutes or until the beef is tender