Ingredients:
* 500 g (1 lb) minced beef
* 1 onion, finely grated
* 1 egg, lightly beaten
* 2 teaspoons Worcestershire sauce
* salt and pepper
Pizzaiola sauce:
* 2 teaspoons oil
* 2 onions, minced
* 2 garlic cloves, crushed
* 2 small green peppers, cored, deseeded and sliced into rings
* 50 g (2 oz) mushrooms, chopped
* 400 g (13 oz) can chopped tomatoes
* 2 teaspoons dried marjoram
* dash of hot chilli sauce