Beef

Fry onions in olive oil over fairly high heat for 3-4 minutes
Add garlic and minced beef and fry until browned
Add mushrooms and dried oregano and cook for a couple of minutes
Stir in tomatoes, hot beef stock, tomato puree and Worcestershire sauce
Bring to the boil then reduce heat, cover and simmer for 30 minutes, stirring occasionally
Cook spaghetti in a large pan of boiling salted water according to packet instructions
Drain spaghetti, run hot water through it, return to the pan, add a dash of olive oil if liked and stir in the meat sauce
Serve in hot bowls and sprinkle with Parmesan