1. Gently fry thinly sliced beef in batches until brown. Set aside. 2. Heat oil in a pan, add curry paste and cook for 1-2 minutes. 3. Add roughly chopped onion, garlic and fish sauce, cook for a further 3-4 minutes. 4. Pour in coconut milk and bring to the boil, combine cornflour with enough water to make a paste and add to pan continuously stirring. Reduce to a simmer. 5. Return beef to pan with beans, chopped mushrooms and capsicum. Simmer for 3-4 minutes. 6. Prepare pappadums as per packet instructions and serve with curry.