Heat oil in a large pan.

Add chopped onion and crushed garlic to the pan.

Stir continuously for 2 minutes until softened.

Increase heat to high and add beef mince.

Cook mince for 3 minutes, breaking it up, until browned.

Add undrained chopped tomatoes, tomato paste, dried oregano, and dried basil.

Bring the sauce to a boil.

Reduce heat to low.

Simmer uncovered, stirring occasionally, for 1.5 hours, or until the sauce has thickened.

Cook spaghetti in boiling water for approximately 20 minutes, or until al dente.

Drain the spaghetti.

Proportion spaghetti onto plates.

Top with meat sauce.

Sprinkle grated Parmesan cheese on each plate.

Optional: Serve immediately.